Susp_Dropper (Kaspersky), Trojan.Win32.Generic!BT (VIPRE), mzpefinder_pcap_file.YR (Lavasoft MAS)Behaviour: Trojan
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 4b0e38203ee88e8dd996fe60942d764c
SHA1: b00cb1a44d584cae1f460d9fa3406fb93e673170
SHA256: 3c06b74024b5e6bb90e24577607e7ff9acf8b60e749ba49143920048e302b50a
SSDeep: 24576:f7D0WepVUSyq SXCYC1a1oyE7rfnzJhh7f6CBzjo8g6ne5vebFmHQGth3GtB48ap:f7D0prUS8mE8cnnzJh9DnrMvPHZJI4pp
Size: 1427357 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2014-01-07 10:46:10
Analyzed on: WindowsXP SP3 32-bit
Summary: Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):
4f912.exe:460
Reader_sl.exe:1064
wuauclt.exe:344
regsvr32.exe:1132
4f52a.tmp:1948
%original file name%.exe:1848
%original file name%.exe:2012
addendum_gtu.exe:1060
jusched.exe:1056
The Trojan injects its code into the following process(es):No processes have been created.
File activity
The process 4f912.exe:460 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OGZVET3R\desktop.ini (67 bytes)
C:\ (4 bytes)
%WinDir%\Prefetch\REGSVR32.EXE-25EEFE2F.pf (40 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\udErhHgjuH.dll (119 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\XPWXY790\addendum_gt2_update_20140311[1].exe (184 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\D1.zip (38 bytes)
%System%\version.dll (119 bytes)
%WinDir%\WinSxS (96 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\8uysfqf.dll (119 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\XPWXY790\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\index.dat (388 bytes)
%Documents and Settings%\%current user%\Local Settings (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\B1.zip (39 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\wireshark.txt (1216 bytes)
%System%\config\SOFTWARE.LOG (9862 bytes)
%System%\drivers\00b60331.sys (72 bytes)
%WinDir%\Temp\Perflib_Perfdata_7b0.dat (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\A1.zip (39 bytes)
%System%\godlion.dll (196 bytes)
%Documents and Settings%\%current user%\Application Data\addendum_gt2_update_20140311.exe (320 bytes)
%WinDir% (288 bytes)
%System%\drivers\7c1d36b7.sys (28 bytes)
%Program Files%\addendum\addendumgt (4 bytes)
%System%\vorsion.dll (38 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\ahnmove.bat (163 bytes)
%System%\midimap.dll (18 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\C1.zip (38 bytes)
%Program Files% (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\test.pml (15619 bytes)
C:\$Directory (1384 bytes)
%System%\config (96 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\27SDWXYF\desktop.ini (67 bytes)
%System%\drivers (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IY7YGLMZ\desktop.ini (67 bytes)
%System%\config\software (3598 bytes)
%Documents and Settings%\%current user% (4 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\index.dat (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp (4 bytes)
%Documents and Settings%\%current user%\Cookies\index.dat (4 bytes)
%System% (6244 bytes)
The Trojan deletes the following file(s):
%Documents and Settings%\%current user%\Cookies\Current_User@doubleclick[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@money.ca.msn[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@abmr[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@msnportal.112.2o7[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@kaspersky[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@www.msn[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@aaa[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@twitter[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@auto.search.msn[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@microsoft[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@c.msn[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@rambler[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@c.bing[2].txt (0 bytes)
%System%\drivers\7c1d36b7.sys (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@kaspersky.122.2o7[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@c.ca.msn[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@atdmt[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@ssl.bing[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@adnxs[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@hm.baidu[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@adgear[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@c.atdmt[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@insurance[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@bing[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@msn[2].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@yandex[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@www.bing[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@tns-counter[1].txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@scorecardresearch[2].txt (0 bytes)
The process wuauclt.exe:344 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
%WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)
The Trojan deletes the following file(s):
%WinDir%\SoftwareDistribution\DataStore\Logs\tmp.edb (0 bytes)
The process 4f52a.tmp:1948 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\4f912.exe (1616 bytes)
C:\%original file name%.exe (5442 bytes)
The Trojan deletes the following file(s):
C:\%original file name%.exe (0 bytes)
The process %original file name%.exe:1848 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\4f52a.tmp (8657 bytes)
The process %original file name%.exe:2012 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\nsm2.tmp (47727 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\IEKill.dll (784 bytes)
C:\DelUS.bat (138 bytes)
%Program Files%\addendum\addendumgt\uninstall.exe (2365 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\SelfDelete.dll (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\version.dll (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\DLLWebCount.dll (784 bytes)
%Program Files%\addendum\addendumgt\addendum_gt.dll (11344 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\KillProcDLL.dll (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\UnProtectMode.dll (7192 bytes)
%Program Files%\addendum\addendumgt\addendum_gtu.exe (12536 bytes)
%Program Files%\addendum\addendumgt\addendum_chartclub.dll (23296 bytes)
The Trojan deletes the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\IEKill.dll (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\SelfDelete.dll (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsh1.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\version.dll (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\DLLWebCount.dll (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\KillProcDLL.dll (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\UnProtectMode.dll (0 bytes)
The process addendum_gtu.exe:1060 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\XPWXY790\addendum_gt2_update_20140311[1].exe (170208 bytes)
%Documents and Settings%\%current user%\Application Data\addendum_gt2_update_20140311.exe (143820 bytes)
The process jusched.exe:1056 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes)
Registry activity
The process 4f912.exe:460 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\4f52a.tmp, , \??\%System%\1wHf2y, \??\%System%\1wHf2y"
[HKCR\CLSID\HOOK_ID]
"name" = "4f912.exe"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 16 00 00 00 01 00 00 00 00 00 00 00"
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1C 58 74 82 3B 47 FE 88 A8 6C 75 7C 87 0B A7 FC"
[HKCR\CLSID\SYS_DLL]
"name" = "8uysfqf.dll"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"
The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"
The Trojan modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:
"ProxyBypass" = "1"
Proxy settings are disabled:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"
The Trojan deletes the following registry key(s):
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects]
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{DBC80044-A445-435b-BC74-9C25C1C588A9}]
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{E7E6F031-17CE-4C07-BC86-EABFE594F69C}]
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{18DF081C-E8AD-4283-A596-FA578C2EBDC3}]
The Trojan deletes the following value(s) in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"
The process Reader_sl.exe:1064 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
The process regsvr32.exe:1132 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKCR\IEHelper.IEHlprObj\CurVer]
"(Default)" = "IEHelper.IEHlprObj.1"
[HKCR\CLSID\{DAF9F01C-30F0-4A52-AF52-E236961977F4}\VersionIndependentProgID]
"(Default)" = "IEHelper.IEHlprObj"
[HKCR\Interface\{C0BEBABF-1785-4075-8C4D-8FEE7833D3CD}\ProxyStubClsid]
"(Default)" = "{00020424-0000-0000-C000-000000000046}"
[HKCR\TypeLib\{D42047D9-38C2-4FD1-8337-F69C8F835A30}\1.0\0\win32]
"(Default)" = "%System%\godlion.dll"
[HKCR\Interface\{C0BEBABF-1785-4075-8C4D-8FEE7833D3CD}\ProxyStubClsid32]
"(Default)" = "{00020424-0000-0000-C000-000000000046}"
[HKCR\CLSID\{DAF9F01C-30F0-4A52-AF52-E236961977F4}\ProgID]
"(Default)" = "IEHelper.IEHlprObj.1"
[HKCR\Interface\{C0BEBABF-1785-4075-8C4D-8FEE7833D3CD}\TypeLib]
"Version" = "1.0"
[HKCR\CLSID\{DAF9F01C-30F0-4A52-AF52-E236961977F4}]
"(Default)" = "IEHlprObj Class"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
[HKCR\CLSID\{DAF9F01C-30F0-4A52-AF52-E236961977F4}\InprocServer32]
"ThreadingModel" = "Apartment"
[HKCR\IEHelper.IEHlprObj]
"(Default)" = "IEHlprObj Class"
[HKCR\CLSID\{DAF9F01C-30F0-4A52-AF52-E236961977F4}\InprocServer32]
"(Default)" = "%System%\godlion.dll"
[HKCR\CLSID\{DAF9F01C-30F0-4A52-AF52-E236961977F4}\TypeLib]
"(Default)" = "{D42047D9-38C2-4FD1-8337-F69C8F835A30}"
[HKCR\IEHelper.IEHlprObj\CLSID]
"(Default)" = "{DAF9F01C-30F0-4A52-AF52-E236961977F4}"
[HKCR\IEHelper.IEHlprObj.1]
"(Default)" = "IEHlprObj Class"
[HKCR\IEHelper.IEHlprObj.1\CLSID]
"(Default)" = "{DAF9F01C-30F0-4A52-AF52-E236961977F4}"
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "3E F6 E1 4B C5 2E 74 66 DC 9B 11 FC 7F 60 2D 9A"
[HKCR\Interface\{C0BEBABF-1785-4075-8C4D-8FEE7833D3CD}]
"(Default)" = "IIEHlprObj"
[HKCR\TypeLib\{D42047D9-38C2-4FD1-8337-F69C8F835A30}\1.0\HELPDIR]
"(Default)" = "%System%\"
[HKCR\TypeLib\{D42047D9-38C2-4FD1-8337-F69C8F835A30}\1.0]
"(Default)" = "IEHelper 1.0 Type Library"
[HKCR\Interface\{C0BEBABF-1785-4075-8C4D-8FEE7833D3CD}\TypeLib]
"(Default)" = "{D42047D9-38C2-4FD1-8337-F69C8F835A30}"
[HKCR\TypeLib\{D42047D9-38C2-4FD1-8337-F69C8F835A30}\1.0\FLAGS]
"(Default)" = "0"
The process 4f52a.tmp:1948 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\4f52a.tmp,"
The process %original file name%.exe:2012 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{18858B77-2B8B-4f74-A2FB-4D6BCEB47DC5}]
"Policy" = "3"
[HKCR\addendum_gt.addendum_gtObject\CLSID]
"(Default)" = "{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}"
[HKLM\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{18858B77-2B8B-4f74-A2FB-4D6BCEB47DC5}]
"AppName" = "addendum_gtu.exe"
[HKCR\addendum_gt.addendum_gtObject]
"(Default)" = "addendum_gtObject Class"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Addendum_gt uninstall]
"UninstallString" = "%Program Files%\addendum\addendumgt\uninstall.exe"
[HKCR\CLSID\{2C157059-4438-4C01-996C-579324A2FBAB}\TypeLib]
"(Default)" = "{4317D3F0-660F-4B81-B209-483F29289000}"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCR\addendum_gt.addendum_gtObject.1\CLSID]
"(Default)" = "{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}"
[HKCR\CLSID\{2C157059-4438-4C01-996C-579324A2FBAB}\InprocServer32]
"ThreadingModel" = "Apartment"
[HKCR\CLSID\{2C157059-4438-4C01-996C-579324A2FBAB}\ProgID]
"(Default)" = "addendum_gt.addendum_gtBho.1"
[HKCR\CLSID\{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}\InprocServer32]
"ThreadingModel" = "Apartment"
[HKCR\CLSID\{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}]
"(Default)" = "Addendum-gt"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCR\CLSID\{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}\TypeLib]
"(Default)" = "{4317D3F0-660F-4B81-B209-483F29289000}"
[HKCR\addendum_gt.addendum_gtObject.1]
"(Default)" = "addendum_gtObject Class"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"
[HKCR\addendum_gt.addendum_gtObject\CurVer]
"(Default)" = "addendum_gt.addendum_gtObject.1"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
[HKCR\AppID\addendum_gt.DLL]
"AppID" = "{DFA646EA-F30B-41B4-94B6-D743E92C44C3}"
[HKLM\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{18858B77-2B8B-4f74-A2FB-4D6BCEB47DC5}]
"AppPath" = "%Program Files%\addendum\addendumgt\"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Addendum_gt uninstall]
"DisplayName" = "Windows Addendum"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"
[HKCU\Software\addendum_gt]
"stver" = "20140107"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
[HKCR\CLSID\{2C157059-4438-4C01-996C-579324A2FBAB}\InprocServer32]
"(Default)" = "%Program Files%\addendum\addendumgt\addendum_gt.dll"
[HKCR\CLSID\{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}]
"AppID" = "{DFA646EA-F30B-41B4-94B6-D743E92C44C3}"
[HKCR\CLSID\{2C157059-4438-4C01-996C-579324A2FBAB}]
"(Default)" = "Addendum-gt"
[HKCR\addendum_gt.addendum_gtBho.1\CLSID]
"(Default)" = "{2C157059-4438-4C01-996C-579324A2FBAB}"
[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{2C157059-4438-4C01-996C-579324A2FBAB}]
"NoExplorer" = "1"
[HKCR\addendum_gt.addendum_gtBho\CLSID]
"(Default)" = "{2C157059-4438-4C01-996C-579324A2FBAB}"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 17 00 00 00 01 00 00 00 00 00 00 00"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"
[HKCR\addendum_gt.addendum_gtBho]
"(Default)" = "addendum_gtBho Class"
[HKCU\Software\Microsoft\Internet Explorer\Explorer Bars\{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}]
"(Default)" = "Addendum"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
[HKCR\CLSID\{2C157059-4438-4C01-996C-579324A2FBAB}]
"AppID" = "{DFA646EA-F30B-41B4-94B6-D743E92C44C3}"
[HKCR\CLSID\{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}\VersionIndependentProgID]
"(Default)" = "addendum_gt.addendum_gtObject"
[HKCR\CLSID\{2C157059-4438-4C01-996C-579324A2FBAB}\VersionIndependentProgID]
"(Default)" = "addendum_gt.addendum_gtBho"
[HKCR\addendum_gt.addendum_gtBho\CurVer]
"(Default)" = "addendum_gt.addendum_gtBho.1"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"
[HKCR\addendum_gt.addendum_gtBho.1]
"(Default)" = "addendum_gtBho Class"
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AA 3A 03 34 46 CB 92 58 F0 2C 41 22 3B 96 BB C5"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"
[HKCR\CLSID\{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}\InprocServer32]
"(Default)" = "%Program Files%\addendum\addendumgt\addendum_gt.dll"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{2C157059-4438-4C01-996C-579324A2FBAB}]
"(Default)" = "Addendum-gt"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Addendum_gt uninstall]
"DisplayIcon" = "%Program Files%\addendum\addendumgt\uninstall.exe"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"
[HKCU\Software\addendum_gt]
"TB_0" = "1"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"
[HKCU\Software\addendum_gt]
"nid" = "addendum_gt2"
[HKCU\Software\AppDataLow\Software\addendum_gt]
"TB_0" = "1"
[HKCR\AppID\{DFA646EA-F30B-41B4-94B6-D743E92C44C3}]
"(Default)" = "addendum_gt"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"
[HKCR\CLSID\{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}\ProgID]
"(Default)" = "addendum_gt.addendum_gtObject.1"
The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"
To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Addendum_gt" = "%Program Files%\addendum\addendumgt\addendum_gtu.exe Runcmd"
The Trojan modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"
The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:
"IntranetName" = "1"
Proxy settings are disabled:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
The Trojan deletes the following registry key(s):
[HKCU\Software\Microsoft\Internet Explorer\Explorer Bars\{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}]
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Discardable\PostSetup\Component Categories\{00021493-0000-0000-C000-000000000046}\Enum]
The Trojan deletes the following value(s) in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
[HKCU\Software\Microsoft\Internet Explorer\Explorer Bars\{E5084B48-28C6-45D6-A5E0-A897C67EBB3A}]
"BarSize"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyOverride"
The Trojan disables automatic startup of the application by deleting the following autorun value:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Addendum_gtst"
The process addendum_gtu.exe:1060 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 18 00 00 00 01 00 00 00 00 00 00 00"
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AE 60 24 56 1D 97 4A 29 B9 2B C4 6A C8 88 E6 7B"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"
The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"
The Trojan modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:
"ProxyBypass" = "1"
Proxy settings are disabled:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"
The Trojan deletes the following value(s) in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"
Network activity (URLs)
| URL | IP |
|---|---|
| hxxp://www.addendam.co.kr/cnt/index.php?pid=addendum_gt2&type=6 | 121.78.182.82 |
| hxxp://www.addendam.co.kr/check/addendum_gt2/update/gt.php | |
| hxxp://down.addendam.co.kr/download/addendum_gt2_update_20140311.exe | 121.78.93.23 |
| addendam.co.kr | 121.78.182.82 |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
Using the driver "%System%\drivers\00b60331.sys" the Trojan controls loading executable images into a memory by installing the Load image notifier.
The Trojan installs the following kernel-mode hooks:
ZwCreateFile
Propagation
Removals
Remove it with Ad-Aware
- Click (here) to download and install Ad-Aware Free Antivirus.
- Update the definition files.
- Run a full scan of your computer.
Manual removal*
- Scan a system with an anti-rootkit tool.
- Terminate malicious process(es) (How to End a Process With the Task Manager):
4f912.exe:460
wuauclt.exe:344
regsvr32.exe:1132
4f52a.tmp:1948
%original file name%.exe:1848
%original file name%.exe:2012
addendum_gtu.exe:1060 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OGZVET3R\desktop.ini (67 bytes)
%WinDir%\Prefetch\REGSVR32.EXE-25EEFE2F.pf (40 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\udErhHgjuH.dll (119 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\XPWXY790\addendum_gt2_update_20140311[1].exe (184 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\D1.zip (38 bytes)
%System%\version.dll (119 bytes)
%WinDir%\WinSxS (96 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\8uysfqf.dll (119 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\XPWXY790\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\index.dat (388 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\B1.zip (39 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\wireshark.txt (1216 bytes)
%System%\config\SOFTWARE.LOG (9862 bytes)
%System%\drivers\00b60331.sys (72 bytes)
%WinDir%\Temp\Perflib_Perfdata_7b0.dat (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\A1.zip (39 bytes)
%System%\godlion.dll (196 bytes)
%Documents and Settings%\%current user%\Application Data\addendum_gt2_update_20140311.exe (320 bytes)
%System%\drivers\7c1d36b7.sys (28 bytes)
%Program Files%\addendum\addendumgt (4 bytes)
%System%\vorsion.dll (38 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\ahnmove.bat (163 bytes)
%System%\midimap.dll (18 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\C1.zip (38 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\test.pml (15619 bytes)
C:\$Directory (1384 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\27SDWXYF\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IY7YGLMZ\desktop.ini (67 bytes)
%System%\config\software (3598 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\index.dat (4 bytes)
%Documents and Settings%\%current user%\Cookies\index.dat (4 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
%WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\4f912.exe (1616 bytes)
C:\%original file name%.exe (5442 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\4f52a.tmp (8657 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsm2.tmp (47727 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\IEKill.dll (784 bytes)
C:\DelUS.bat (138 bytes)
%Program Files%\addendum\addendumgt\uninstall.exe (2365 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\SelfDelete.dll (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\version.dll (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\DLLWebCount.dll (784 bytes)
%Program Files%\addendum\addendumgt\addendum_gt.dll (11344 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\KillProcDLL.dll (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsc3.tmp\UnProtectMode.dll (7192 bytes)
%Program Files%\addendum\addendumgt\addendum_gtu.exe (12536 bytes)
%Program Files%\addendum\addendumgt\addendum_chartclub.dll (23296 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Addendum_gt" = "%Program Files%\addendum\addendumgt\addendum_gtu.exe Runcmd" - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).