HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Winwebsec.mde (v) (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.
Summary
MD5: 24e758c8141ca769c1fe816567c6299c
SHA1: 4579287107939974cece45cdfaa0d16209362cd3
SHA256: 3752730092715e68f185c4c54a0718fdfa0ce8f9a87500b80838ab317c02259e
SSDeep: 6144:RJruJHaLj1xHBsWLy/1J7QzRlfYdDKzf1y57SjxBBD:RJy9kjjZ615QNk5SZD
Size: 318464 bytes
File type: PE32
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2003-11-14 01:15:40
Summary: Trojan-PSW. Trojan program intended for stealing users passwords.
Dynamic Analysis
Process activity
The Trojan-PSW creates the following process(es):
vaosy.exe:2996
24e758c8141ca769c1fe816567c6299c.exe:2580
The Trojan-PSW injects its code into the following process(es):
ctfmon.exe:252
File activity
The process vaosy.exe:2996 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 (2208 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (540 bytes)
The process 24e758c8141ca769c1fe816567c6299c.exe:2580 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\OHO34B4.bat (173 bytes)
%Documents and Settings%\%current user%\Application Data\Ilukq\vaosy.exe (1743 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 vaosy.exe:2996 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" = "EA 8F 2D CC 06 59 4F 05 CE 95 3B E0 63 74 12 B6"
[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"
[HKCU\Software\Microsoft\Nuuvythan]
"190di40b" = "gNzdJ7n/100IQw=="
The process 24e758c8141ca769c1fe816567c6299c.exe:2580 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" = "89 8A 39 04 F0 19 41 84 16 BD 63 08 44 67 B8 CB"
[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" = "93 06 78 B9 81 E5 41 BA 7A B4 1A 02 94 3C 83 CD"
[HKCU\Identities]
"Last User ID" = "{6855BFC2-9E4A-4896-A11D-74388FBABDC2}"
[HKCU\Identities]
"Last Username" = "Main Identity"
[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"
[HKCU\Software\Microsoft\Nuuvythan]
"1ccb93f9" = "tdyyJw=="
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
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):
vaosy.exe:2996
24e758c8141ca769c1fe816567c6299c.exe:2580 - 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 (2208 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (540 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\OHO34B4.bat (173 bytes)
%Documents and Settings%\%current user%\Application Data\Ilukq\vaosy.exe (1743 bytes) - Reboot the computer.