HEUR:Trojan.Win32.Generic (Kaspersky), Gen:Variant.Zusy.123960 (B) (Emsisoft), Gen:Variant.Zusy.123960 (AdAware), Backdoor.Win32.Xtrat.FD, Trojan.Win32.IEDummy.FD, GenericAutorunWorm.YR, GenericInjector.YR (Lavasoft MAS)Behaviour: Trojan, Backdoor, Worm, WormAutorun
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 78f0cf98f47abb6968e68387580969df
SHA1: a77f3e2a2251872f0be5172821a329df3dfb0056
SHA256: fb5370d6a6397e8b4b807ac247db2fbbd7544e67be2346b1f38a207f458cd820
SSDeep: 6144:dLM3L6hWtnvqI6vu5G2p0u8opELOlMi4YfkhaW5/OHRQyDH:BMbaWtn6vkDSu8oS04YfkhFq
Size: 358973 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: MicrosoftVisualC, NETexecutable, UPolyXv05_v6
Company: no certificate found
Created at: 2015-01-21 12:31:38
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
Behaviour | Description |
---|---|
WormAutorun | A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer. |
Process activity
The Trojan creates the following process(es):
%original file name%.exe:860
The Trojan injects its code into the following process(es):
iexplore.exe:1488
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process %original file name%.exe:860 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\My Documents\explorer.exe (2105 bytes)
%Documents and Settings%\%current user%\Start Menu\Programs\Startup\startup.exe (2105 bytes)
Registry activity
The process %original file name%.exe:860 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "2C B0 8A D5 17 33 11 E0 A2 30 0A 31 BE E7 8B 5D"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Personal" = "%Documents and Settings%\%current user%\My Documents"
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
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]
"Startup" = "%Documents and Settings%\%current user%\Start Menu\Programs\Startup\startup.exe"
Dropped PE files
There are no dropped PE files.
HOSTS file anomalies
No changes have been detected.
Rootkit activity
No anomalies have been detected.
Propagation
A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer.
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:860
- Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\My Documents\explorer.exe (2105 bytes)
%Documents and Settings%\%current user%\Start Menu\Programs\Startup\startup.exe (2105 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Startup" = "%Documents and Settings%\%current user%\Start Menu\Programs\Startup\startup.exe" - Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
- Reboot the computer.
Static Analysis
VersionInfo
Company Name: Microsoft
Product Name: Microsoft
Product Version: 9.1.3.23
Legal Copyright: @2015
Legal Trademarks: Microsoft (TM)
Original Filename: war.exe
Internal Name: war.exe
File Version: 9.1.3.23
File Description: Microsoft
Comments: Microsoft Coprotion
Language: English (United States)
Company Name: MicrosoftProduct Name: MicrosoftProduct Version: 9.1.3.23Legal Copyright: @2015Legal Trademarks: Microsoft (TM)Original Filename: war.exeInternal Name: war.exeFile Version: 9.1.3.23File Description: MicrosoftComments: Microsoft CoprotionLanguage: English (United States)
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 8192 | 135284 | 135680 | 4.44812 | 6d9dd2e47798a19c2271edcbe08271cf |
.sdata | 147456 | 177 | 512 | 1.5075 | 17ee383034c2bf121a69e919594e429e |
.rsrc | 155648 | 4532 | 4608 | 3.33891 | 6c3fe415d32cac375f8f825ad50ee854 |
.reloc | 163840 | 12 | 512 | 0.067931 | b7fbb324efef06bef4c12cb55076fd1e |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
Map
The Trojan connects to the servers at the folowing location(s):
Strings from Dumps
iexplore.exe_1488:
%?9-*09,*19}*09
%?9-*09,*19}*09
.text
.text
`.data
`.data
.rsrc
.rsrc
msvcrt.dll
msvcrt.dll
KERNEL32.dll
KERNEL32.dll
NTDLL.DLL
NTDLL.DLL
USER32.dll
USER32.dll
SHLWAPI.dll
SHLWAPI.dll
SHDOCVW.dll
SHDOCVW.dll
Software\Microsoft\Windows\CurrentVersion\Explorer\BrowseNewProcess
Software\Microsoft\Windows\CurrentVersion\Explorer\BrowseNewProcess
IE-X-X
IE-X-X
rsabase.dll
rsabase.dll
System\CurrentControlSet\Control\Windows
System\CurrentControlSet\Control\Windows
dw15 -x -s %u
dw15 -x -s %u
watson.microsoft.com
watson.microsoft.com
IEWatsonURL
IEWatsonURL
%s -h %u
%s -h %u
iedw.exe
iedw.exe
Iexplore.XPExceptionFilter
Iexplore.XPExceptionFilter
jscript.DLL
jscript.DLL
mshtml.dll
mshtml.dll
mlang.dll
mlang.dll
urlmon.dll
urlmon.dll
wininet.dll
wininet.dll
shdocvw.DLL
shdocvw.DLL
browseui.DLL
browseui.DLL
comctl32.DLL
comctl32.DLL
IEXPLORE.EXE
IEXPLORE.EXE
iexplore.pdb
iexplore.pdb
ADVAPI32.dll
ADVAPI32.dll
MsgWaitForMultipleObjects
MsgWaitForMultipleObjects
IExplorer.EXE
IExplorer.EXE
IIIIIB(II<.fg>
IIIIIB(II<.fg>
7?_____ZZSSH%
7?_____ZZSSH%
)z.UUUUUUUU
)z.UUUUUUUU
,....Qym
,....Qym
````2```
````2```
{.QLQIIIKGKGKGKGKGKG
{.QLQIIIKGKGKGKGKGKG
;33;33;0
;33;33;0
8888880
8888880
8887080
8887080
browseui.dll
browseui.dll
shdocvw.dll
shdocvw.dll
6.00.2900.5512 (xpsp.080413-2105)
6.00.2900.5512 (xpsp.080413-2105)
Windows
Windows
Operating System
Operating System
6.00.2900.5512
6.00.2900.5512
iexplore.exe_1488_rwx_10000000_00080000:
`.rsrc
`.rsrc
ServerKeyloggerU
ServerKeyloggerU
789:;
789:;
%SERVER%
%SERVER%
URLMON.DLL
URLMON.DLL
shell32.dll
shell32.dll
hXXp://
hXXp://
advapi32.dll
advapi32.dll
kernel32.dll
kernel32.dll
mpr.dll
mpr.dll
version.dll
version.dll
comctl32.dll
comctl32.dll
gdi32.dll
gdi32.dll
opengl32.dll
opengl32.dll
user32.dll
user32.dll
wintrust.dll
wintrust.dll
msimg32.dll
msimg32.dll
$,((&&"*"
$,((&&"*"
,nRL.Px
,nRL.Px
/,;
/,;
HHH4HHH9HHH:HHH9HHH8HHH7EDD0>>>.XZZf
HHH4HHH9HHH:HHH9HHH8HHH7EDD0>>>.XZZf
HHH.HHH7HHH5HHH5GGG2@??'MNNB
HHH.HHH7HHH5HHH5GGG2@??'MNNB
GGG#HHH.FFF2>??-UVVX
GGG#HHH.FFF2>??-UVVX
===.FFF7III/HHH
===.FFF7III/HHH
KWindows
KWindows
TServerKeylogger
TServerKeylogger
GetWindowsDirectoryW
GetWindowsDirectoryW
RegOpenKeyExW
RegOpenKeyExW
RegCreateKeyW
RegCreateKeyW
RegCloseKey
RegCloseKey
RegOpenKeyExA
RegOpenKeyExA
FindExecutableW
FindExecutableW
ShellExecuteW
ShellExecuteW
SHDeleteKeyW
SHDeleteKeyW
URLDownloadToCacheFileW
URLDownloadToCacheFileW
UnhookWindowsHookEx
UnhookWindowsHookEx
SetWindowsHookExW
SetWindowsHookExW
MapVirtualKeyW
MapVirtualKeyW
GetKeyboardLayout
GetKeyboardLayout
GetKeyState
GetKeyState
GetKeyboardType
GetKeyboardType
GetKeyboardState
GetKeyboardState
FtpPutFileW
FtpPutFileW
FtpSetCurrentDirectoryW
FtpSetCurrentDirectoryW
.idata
.idata
.rdata
.rdata
P.reloc
P.reloc
P.rsrc
P.rsrc
URLDb
URLDb
KERNEL32.DLL
KERNEL32.DLL
ntdll.dll
ntdll.dll
oleaut32.dll
oleaut32.dll
shlwapi.dll
shlwapi.dll
wininet.dll
wininet.dll
x.html
x.html
HKEY_CLASSES_ROOT
HKEY_CLASSES_ROOT
HKEY_CURRENT_USER
HKEY_CURRENT_USER
HKEY_LOCAL_MACHINE
HKEY_LOCAL_MACHINE
HKEY_USERS
HKEY_USERS
HKEY_CURRENT_CONFIG
HKEY_CURRENT_CONFIG
[Execute]
[Execute]
KeyDelBackspace
KeyDelBackspace
.html
.html
XtremeKeylogger
XtremeKeylogger
Software\Microsoft\Windows\CurrentVersion\Run
Software\Microsoft\Windows\CurrentVersion\Run
.functions
.functions
icon=shell32.dll,4
icon=shell32.dll,4
shellexecute=
shellexecute=
autorun.inf
autorun.inf
\Microsoft\Windows\
\Microsoft\Windows\
ÞFAULTBROWSER%
ÞFAULTBROWSER%
svchost.exe
svchost.exe
127.0.0.1
127.0.0.1
Server.exe
Server.exe
C:\Windows\SysWOW64\urlmon.
C:\Windows\SysWOW64\urlmon.
MsgHKCU
MsgHKCU
{5460C4DF-B266-909E-CB58-E32B79832EB2}
{5460C4DF-B266-909E-CB58-E32B79832EB2}
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
\sw%SERVER%
\sw%SERVER%
%iles\local.ini
%iles\local.ini
Microsoft\Windows\Start Men
Microsoft\Windows\Start Men
PTF.ftpserver.com
PTF.ftpserver.com
Microsoft\Windows\GameExplo
Microsoft\Windows\GameExplo
ftpuser
ftpuser
%Documents and Settings%\%current user%\My Documents\explorer.exe
%Documents and Settings%\%current user%\My Documents\explorer.exe
%Program Files%\Internet Explorer\iexplore.exe
%Program Files%\Internet Explorer\iexplore.exe