Trojan-PSW.Win32.Zbot.4_67c98aeb87
HEUR:Trojan.Win32.Generic (Kaspersky), Win32.Malware!Drop (VIPRE), Trojan-PSW.Win32.Zbot.4.FD, GenericInjector.YR (Lavasoft MAS)
Behaviour: Trojan-PSW, Trojan
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
MD5: 67c98aeb87f53b7418447e6ec2d8f5a3
SHA1: d331c30e01d9d80dab6139fa4448008558c59448
SHA256: aee2d4c6fbe06f20dacc85d149b690837172c6df283f05d9246c7baa54378c94
SSDeep: 6144:vGe0QgG9bXgwt2HGZA1LcAirqLCavTBrSQGEPVTmxGn6Jf6sqPl:vYQpXXGnOrwBrSQG8Vy/2l
Size: 317952 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2008-05-01 12:17:33
Summary:
Trojan-PSW. Trojan program intended for stealing users passwords.
Payload
No specific payload has been found.
Process activity
The Trojan-PSW creates the following process(es):
ovanyn.exe:2900
67c98aeb87f53b7418447e6ec2d8f5a3.exe:556
The Trojan-PSW injects its code into the following process(es):
ctfmon.exe:252
File activity
The process ovanyn.exe:2900 makes changes in a file system.
The Trojan-PSW creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\ntuser.dat.LOG (3720 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (2420 bytes)
The process 67c98aeb87f53b7418447e6ec2d8f5a3.exe:556 makes changes in a file system.
The Trojan-PSW creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\MKD5D95.bat (173 bytes)
%Documents and Settings%\%current user%\Application Data\Osigi\ovanyn.exe (1742 bytes)
The process ctfmon.exe:252 makes changes in a file system.
The Trojan-PSW creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\ntuser.dat.LOG (5400 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (4484 bytes)
Registry activity
The process ovanyn.exe:2900 makes changes in a system registry.
The Trojan-PSW creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E2 8A CB 46 D6 24 11 DF CB 92 C2 9E 22 B8 0C 20"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Bejiloycxeof]
"di45f8j" = "zu9OoLhFxTQHR1FfagY="
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Local AppData" = "%Documents and Settings%\%current user%\Local Settings\Application Data"
The process 67c98aeb87f53b7418447e6ec2d8f5a3.exe:556 makes changes in a system registry.
The Trojan-PSW creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "F8 D4 A5 04 74 AB 88 24 47 49 53 4E 0A 9C 67 6C"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Local AppData" = "%Documents and Settings%\%current user%\Local Settings\Application Data"
The process ctfmon.exe:252 makes changes in a system registry.
The Trojan-PSW creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1B 96 14 BE F0 A1 0D B8 0F 0E E8 C9 1A 1F D4 2B"
[HKCU\Identities]
"Last User ID" = "{6855BFC2-9E4A-4896-A11D-74388FBABDC2}"
[HKCU\Identities]
"Last Username" = "Main Identity"
[HKCU\Software\Microsoft\Bejiloycxeof]
"a7h1c71" = "9u8goA=="
[HKCU\Software\Microsoft\WAB\WAB4]
"OlkFolderRefresh" = "0"
[HKCU\Software\Microsoft\WAB\WAB4]
"FirstRun" = "1"
[HKCU\Identities]
"Identity Login" = "622675"
[HKCU\Software\Microsoft\Internet Account Manager]
"Server ID" = "4"
[HKCU\Identities]
"Identity Ordinal" = "2"
[HKCU\Software\Microsoft\WAB\WAB4]
"OlkContactRefresh" = "0"
The Trojan-PSW deletes the following value(s) in system registry:
[HKCU\Identities]
"Changing"
[HKCU\Identities]
"OutgoingID"
[HKCU\Identities]
"IncomingID"
The Trojan-PSW disables automatic startup of the application by deleting the following autorun value:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"internat.exe"
Network activity (URLs)
No activity has been detected.
Rootkit activity
The Trojan-PSW installs the following user-mode hooks in WININET.dll:
HttpSendRequestExW
HttpSendRequestExA
InternetWriteFile
InternetReadFileExA
InternetReadFileExW
HttpSendRequestA
HttpSendRequestW
InternetQueryDataAvailable
HttpQueryInfoW
InternetCloseHandle
HttpQueryInfoA
InternetReadFile
The Trojan-PSW installs the following user-mode hooks in CRYPT32.dll:
PFXImportCertStore
The Trojan-PSW installs the following user-mode hooks in USER32.dll:
GetClipboardData
TranslateMessage
The Trojan-PSW installs the following user-mode hooks in Secur32.dll:
UnsealMessage
SealMessage
DeleteSecurityContext
The Trojan-PSW installs the following user-mode hooks in WS2_32.dll:
WSAGetOverlappedResult
WSASend
recv
gethostbyname
WSARecv
send
closesocket
freeaddrinfo
getaddrinfo
GetAddrInfoW
The Trojan-PSW installs the following user-mode hooks in ntdll.dll:
LdrLoadDll
NtCreateThread
Propagation
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):
ovanyn.exe:2900
67c98aeb87f53b7418447e6ec2d8f5a3.exe:556 - Delete the original Trojan-PSW file.
- Delete or disinfect the following files created/modified by the Trojan-PSW:
%Documents and Settings%\%current user%\ntuser.dat.LOG (3720 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (2420 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\MKD5D95.bat (173 bytes)
%Documents and Settings%\%current user%\Application Data\Osigi\ovanyn.exe (1742 bytes) - Reboot the computer.
*Manual removal may cause unexpected system behaviour and should be performed at your own risk.