Gen:Variant.Barys.752 (BitDefender), VirTool:Win32/DelfInject (Microsoft), Trojan.Win32.Buzus.mfno (Kaspersky), Trojan.Win32.Generic!BT (VIPRE), Trojan.DownLoader5.51467 (DrWeb), Gen:Variant.Barys.1067 (B) (Emsisoft), Artemis!10DE9D1686ED (McAfee), Trojan.Gen (Symantec), Virus.Win32.DelfInject (Ikarus), Gen:Variant.Barys.752 (FSecure), Generic27.ZBQ (AVG), Win32:Inject-ARZ [Trj] (Avast), TROJ_SPNR.11B713 (TrendMicro), Trojan.Win32.Delphi.FD, Trojan.Win32.Sasfis.FD, VirTool.Win32.DelfInject.FD, GenericInjector.YR (Lavasoft MAS)Behaviour: Trojan, Virus, VirTool
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 10de9d1686ed85efff2c76435f98179f
SHA1: 92941590ef7683ec9a10423028002208ad732737
SHA256: 42bc05ae1fd022d4d77c2bb7ebd7032d31a888ab28a435d826868c5257611100
SSDeep: 24576:tWrJpitnKSwFkgUB2ezittqchJhVLDmOMw X7t7C RlVa5BNFI:YrJpBF02Minh3RDqtWqlVa5BXI
Size: 1507328 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6, BorlandDelphi30, BorlandDelphiv30, ACProtect141
Company: no certificate found
Created at: 1992-06-20 01:22:17
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):
%original file name%.exe:2636
0yun.exe:2832
rundll.exe:2776
The Trojan injects its code into the following process(es):
rundll.exe:2800
File activity
The process %original file name%.exe:2636 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Application Data\0yun.exe (81 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\rundll.exe (11493 bytes)
The process 0yun.exe:2832 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013113020131201\index.dat (16 bytes)
%Documents and Settings%\%current user%\Cookies\D8JLKPH4.txt (585 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3F9KLW6F\smalloutline[1].gif (439 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\1GGYBZUQ\uGFy9lAuh_c[1].png (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\0[1].php (96 bytes)
%Documents and Settings%\%current user%\Cookies\FT0ZOQCS.txt (309 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\SZIS9VJF\dgz5oiBlJrI[1].js (83343 bytes)
%Documents and Settings%\%current user%\Cookies\AIBNNX96.txt (585 bytes)
%Documents and Settings%\%current user%\Cookies\WE9DEHK6.txt (618 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\SZIS9VJF\ga[1].js (22939 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\alcazer[1].js (73 bytes)
%Documents and Settings%\%current user%\Cookies\FJ9XL1JE.txt (92 bytes)
%Documents and Settings%\%current user%\Cookies\S9WMVLCP.txt (585 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\alcazer[1].css (25 bytes)
%Documents and Settings%\%current user%\Cookies\9SJK5KNE.txt (936 bytes)
%Documents and Settings%\%current user%\Cookies\N2WL4RGB.txt (460 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Cookies\ILWE64UA.txt (1096 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\SZIS9VJF\like[1].php (2075 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\1GGYBZUQ\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Cookies\AA5WRSFF.txt (585 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3F9KLW6F\pingjs[1] (30 bytes)
%Documents and Settings%\%current user%\Cookies\PW25V2U9.txt (123 bytes)
%Documents and Settings%\%current user%\Cookies\YC5GEKMM.txt (276 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\1GGYBZUQ\js15_as[1].js (3934 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\e[1].php (96 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3F9KLW6F\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\SZIS9VJF\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Cookies\PUCQCED8.txt (776 bytes)
The Trojan deletes the following file(s):
%Documents and Settings%\%current user%\Cookies\N2WL4RGB.txt (0 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013041520130416\index.dat (0 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013041520130416 (0 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013040820130415 (0 bytes)
%Documents and Settings%\%current user%\Cookies\AIBNNX96.txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\AA5WRSFF.txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\WE9DEHK6.txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\FJ9XL1JE.txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\PUCQCED8.txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\S9WMVLCP.txt (0 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013040820130415\index.dat (0 bytes)
%Documents and Settings%\%current user%\Cookies\9SJK5KNE.txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\PW25V2U9.txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\YC5GEKMM.txt (0 bytes)
%Documents and Settings%\%current user%\Cookies\FT0ZOQCS.txt (0 bytes)
The process rundll.exe:2800 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Application Data\appdata.jpg (23 bytes)
Registry activity
The process %original file name%.exe:2636 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "4C 5D EF 09 18 DB B4 AC C7 A9 88 28 AB B3 3E EC"
[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Local Settings\Application Data]
"0yun.exe" = "0yun"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f3-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"AutoDetect" = "1"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{773a730e-74fb-11e2-b597-000c293bdf2f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f2-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f5-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
"Personal" = "%Documents and Settings%\%current user%\My Documents"
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"
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:
"UNCAsIntranet" = "1"
The process 0yun.exe:2832 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\{fdd9f6f3-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"AutoDetect" = "1"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Extensible Cache\MSHist012013113020131201]
"CacheLimit" = "8192"
"CachePath" = "%USERPROFILE%\Local Settings\History\History.IE5\MSHist012013113020131201"
"CacheRepair" = "0"
[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\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"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Extensible Cache\MSHist012013113020131201]
"CachePrefix" = ":2013113020131201:"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f2-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Internet Explorer\Main\WindowsSearch]
"Version" = "WS not installed"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "46 00 00 00 40 00 00 00 01 00 00 00 00 00 00 00"
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "4F 7D 37 8D 9A D9 47 1D 64 34 D3 5D 71 89 5C 93"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{773a730e-74fb-11e2-b597-000c293bdf2f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Extensible Cache\MSHist012013113020131201]
"CacheOptions" = "11"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f5-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Favorites" = "%Documents and Settings%\%current user%\Favorites"
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):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Extensible Cache\MSHist012013041520130416]
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Extensible Cache\MSHist012013040820130415]
The Trojan deletes the following value(s) in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"
The process rundll.exe:2800 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "4F D6 DF A5 C2 F6 E6 5F A0 9F DC 05 7F 57 B0 77"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run]
"usnscv.exe" = "%Documents and Settings%\%current user%\Local Settings\Application Data\usnscv.exe /background"
The process rundll.exe:2776 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "EA EF 2E 3F 69 EF 2F 67 96 9D 3C C4 61 2D 7F 55"
Network activity (URLs)
URL | IP |
---|---|
hxxp://95.170.95.63/alcazer.js | |
hxxp://95.170.95.63/alcazer.css | |
hxxp://star.c10r.facebook.com/plugins/like.php?href=http://koxp.alcazer.com&send=false&layout=button_count&width=450&show_faces=false&action=like&colorscheme=light&font=verdana&height=21 | |
hxxp://www-google-analytics.l.google.com/ga.js | |
hxxp://s10.histats.com/js15_as.js | 184.173.167.107 |
hxxp://95.170.95.63/smalloutline.gif | |
hxxp://www-google-analytics.l.google.com/__utm.gif?utmwv=5.4.6&utms=1&utmn=1059817989&utmhn=koxp.alcazer.com&utmcs=utf-8&utmsr=1176x885&utmvp=239x85&utmsc=32-bit&utmul=en-us&utmje=1&utmfl=6.0 r88&utmdt=PRoBot Macro v1999 & PRoMaxBot v1863 | 1999 | Knight OnLine&utmhid=2007004314&utmr=-&utmp=/?v1.95.1-1951&utmht=1385780508795&utmac=UA-17031581-1&utmcc=__utma=248830040.1869363677.1385780507.1385780507.1385780507.1;+__utmz=248830040.1385780507.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none);&utmu=qB~ | |
hxxp://s10.histats.com/stats/0.php?885135&@f16&@g1&@h1&@i1&@j1385780508889&@k0&@l1&@mPRoBot Macro v1999 & PRoMaxBot v1863 | 1999 | Knight OnLine&@n0&@o1000&@q0&@r0&@s0&@ten-us&@u1176&@vhttp://koxp.alcazer.com/?v1.95.1-1951&@w | |
hxxp://c0.histats.12mlbe.com/jsx01/7/885135/134,127 | 50.22.243.52 |
hxxp://a749.dsw4.akamai.net/rsrc.php/v2/yg/r/dgz5oiBlJrI.js | |
hxxp://a749.dsw4.akamai.net/rsrc.php/v2/yK/r/uGFy9lAuh_c.png | |
www.facebook.com | 31.13.74.96 |
www.google-analytics.com | 173.194.43.70 |
static.ak.fbcdn.net | 165.254.155.74 |
whos.amung.us | 67.202.94.94 |
s4.histats.com | 184.173.167.106 |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
No anomalies have been detected.
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*
- Terminate malicious process(es) (How to End a Process With the Task Manager):
%original file name%.exe:2636
0yun.exe:2832
rundll.exe:2776 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Application Data\0yun.exe (81 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\rundll.exe (11493 bytes)
%Documents and Settings%\%current user%\Local Settings\History\History.IE5\MSHist012013113020131201\index.dat (16 bytes)
%Documents and Settings%\%current user%\Cookies\D8JLKPH4.txt (585 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3F9KLW6F\smalloutline[1].gif (439 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\1GGYBZUQ\uGFy9lAuh_c[1].png (1 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\0[1].php (96 bytes)
%Documents and Settings%\%current user%\Cookies\FT0ZOQCS.txt (309 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\SZIS9VJF\dgz5oiBlJrI[1].js (83343 bytes)
%Documents and Settings%\%current user%\Cookies\AIBNNX96.txt (585 bytes)
%Documents and Settings%\%current user%\Cookies\WE9DEHK6.txt (618 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\SZIS9VJF\ga[1].js (22939 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\alcazer[1].js (73 bytes)
%Documents and Settings%\%current user%\Cookies\FJ9XL1JE.txt (92 bytes)
%Documents and Settings%\%current user%\Cookies\S9WMVLCP.txt (585 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\alcazer[1].css (25 bytes)
%Documents and Settings%\%current user%\Cookies\9SJK5KNE.txt (936 bytes)
%Documents and Settings%\%current user%\Cookies\N2WL4RGB.txt (460 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Cookies\ILWE64UA.txt (1096 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\SZIS9VJF\like[1].php (2075 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\1GGYBZUQ\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Cookies\AA5WRSFF.txt (585 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3F9KLW6F\pingjs[1] (30 bytes)
%Documents and Settings%\%current user%\Cookies\PW25V2U9.txt (123 bytes)
%Documents and Settings%\%current user%\Cookies\YC5GEKMM.txt (276 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\1GGYBZUQ\js15_as[1].js (3934 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\OVYHJBCC\e[1].php (96 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3F9KLW6F\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\SZIS9VJF\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Cookies\PUCQCED8.txt (776 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\appdata.jpg (23 bytes) - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.