HEUR:Trojan.Win32.Generic (Kaspersky), Win32.Virtob.Gen.12 (AdAware), VirusVirut.YR (Lavasoft MAS)Behaviour: Trojan, Virus
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 67a6ced30a5ac7ce9c3612e0502c09f8
SHA1: e78fdc435a9cfff00161f5fc3f82ba0f1fbe55d7
SHA256: 031f9c39e0e9ab7943ef6cc22baf12b8593709236523b414adbbe05000ba2bda
SSDeep: 1536:3Y8lYuSccCgwWYaziLoF2N2CFLcVygldvqr9PxDtpkZ4XXXXbFS9H7J64mtklX:3TSccsWlXCFLcVyg3u9ZDtpk99sI
Size: 162199 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2004-09-12 12:55:29
Analyzed on: Windows7 SP1 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):
ntvdm.exe:2224
The Trojan injects its code into the following process(es):
%original file name%.exe:4008
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process %original file name%.exe:4008 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
C:\67a6ced30a5ac7ce9c3612e0502c09f8.usr (50117 bytes)
C:\Windows\System32\USR_Shohdi_Photo_USR.rsu (21682 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Adobe\Reader 9.3\Setup Files\Reader9\Setup.exe (444160 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Adobe\Reader 9.3\Setup Files\Setup.exe (408872 bytes)
C:\Windows\USR_Shohdi_Photo_USR.exe (6889074 bytes)
The Trojan deletes the following file(s):
C:\Users\"%CurrentUserName%"\AppData\Local\Adobe\Reader 9.3\Setup Files\Reader9\Setup.usr (0 bytes)
C:\Windows\System32\USR_Shohdi_Photo_USR.rsu (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Adobe\Reader 9.3\Setup Files\Setup.usr (0 bytes)
The process ntvdm.exe:2224 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\scs2FD6.tmp (335 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\scs31EA.tmp (269 bytes)
The Trojan deletes the following file(s):
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\scs2FD6.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\scs31EA.tmp (0 bytes)
Registry activity
Dropped PE files
MD5 | File path |
---|---|
ae4dfe9f4809b33e06ad8ec487d646ca | c:\67a6ced30a5ac7ce9c3612e0502c09f8.usr |
HOSTS file anomalies
The Trojan modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses. The modified file is 864 bytes in size. The following strings are added to the hosts file listed below:
127.0.0.1 | jL.chura.pl |
127.0.0.1 | validation.sls.microsoft.com |
Rootkit activity
The Trojan installs the following user-mode hooks in ntdll.dll:
NtQueryInformationProcess
ZwOpenFile
NtDeviceIoControlFile
ZwCreateUserProcess
ZwCreateProcessEx
NtCreateProcess
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):
ntvdm.exe:2224
- Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
C:\67a6ced30a5ac7ce9c3612e0502c09f8.usr (50117 bytes)
C:\Windows\System32\USR_Shohdi_Photo_USR.rsu (21682 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Adobe\Reader 9.3\Setup Files\Reader9\Setup.exe (444160 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Adobe\Reader 9.3\Setup Files\Setup.exe (408872 bytes)
C:\Windows\USR_Shohdi_Photo_USR.exe (6889074 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\scs2FD6.tmp (335 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\scs31EA.tmp (269 bytes) - Restore the original content of the HOSTS file (%System%\drivers\etc\hosts): 127.0.0.1 localhost
- Reboot the computer.
Static Analysis
VersionInfo
No information is available.
No information is available.
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
4096 | 16384 | 6656 | 5.29942 | ed41050c46cf2dea26cf5a8d78627828 | |
.rsrc | 20480 | 102400 | 102400 | 2.95762 | fb08e890b5ddd1678bfada5f25593fe2 |
petite | 122880 | 379 | 512 | 2.83683 | d9152af36e3787ad41768ba5d11906da |
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
%original file name%.exe_4008:
`.rsrc
`.rsrc
D$(PSSh
D$(PSSh
ccRegVfy.exe
ccRegVfy.exe
ccApp.exe
ccApp.exe
IEXPLORE.EXE
IEXPLORE.EXE
windows
windows
\*.exe
\*.exe
.text
.text
.data
.data
.rsrc
.rsrc
msvcrt.dll
msvcrt.dll
KERNEL32.dll
KERNEL32.dll
nddeapir.pdb
nddeapir.pdb
_acmdln
_acmdln
m.Zw%
m.Zw%
ADVAPI32.DLL
ADVAPI32.DLL
\USERINIT.EXE
\USERINIT.EXE
%s:*:enabled:@shell32.dll,-1
%s:*:enabled:@shell32.dll,-1
SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
Qoysys.zief.pl
Qoysys.zief.pl
core.ircgalaxy.pl
core.ircgalaxy.pl
NICK avabcadz
NICK avabcadz
SFC.DLL
SFC.DLL
SFC_OS.DLL
SFC_OS.DLL
USER32.DLL
USER32.DLL
SHLWAPI.DLL
SHLWAPI.DLL
WSOCK32.DLL
WSOCK32.DLL
WININET.DLL
WININET.DLL
%.6x . . :%c%.8x%x %s
%.6x . . :%c%.8x%x %s
JOIN
JOIN
127.0.0.1 jL.chura.pl
127.0.0.1 jL.chura.pl
#
#
KERNEL32.DLL
KERNEL32.DLL
windowsupdate
windowsupdate
drweb
drweb
user32.dll
user32.dll
kernel32.dll
kernel32.dll
MSVCIRT.dll
MSVCIRT.dll
MSVCRT.dll
MSVCRT.dll
5.1.2600.0 (xpclient.010817-1148)
5.1.2600.0 (xpclient.010817-1148)
NDDEAPIR.EXE
NDDEAPIR.EXE
Windows
Windows
Operating System
Operating System
5.1.2600.0
5.1.2600.0
%original file name%.exe_4008_rwx_00401000_00002000:
D$(PSSh
D$(PSSh
%original file name%.exe_4008_rwx_00419000_00005000:
ADVAPI32.DLL
ADVAPI32.DLL
\USERINIT.EXE
\USERINIT.EXE
%s:*:enabled:@shell32.dll,-1
%s:*:enabled:@shell32.dll,-1
SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
Qoysys.zief.pl
Qoysys.zief.pl
core.ircgalaxy.pl
core.ircgalaxy.pl
NICK avabcadz
NICK avabcadz
SFC.DLL
SFC.DLL
SFC_OS.DLL
SFC_OS.DLL
USER32.DLL
USER32.DLL
SHLWAPI.DLL
SHLWAPI.DLL
WSOCK32.DLL
WSOCK32.DLL
WININET.DLL
WININET.DLL
%.6x . . :%c%.8x%x %s
%.6x . . :%c%.8x%x %s
JOIN
JOIN
127.0.0.1 jL.chura.pl
127.0.0.1 jL.chura.pl
#
#
KERNEL32.DLL
KERNEL32.DLL
windowsupdate
windowsupdate
drweb
drweb