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: a964574a21ac6f47818c55486fdd3fcd
SHA1: cb15852681d5de332697b03ed9baecf672898a5d
SHA256: 390e0318fa5b50b28623040e733689dba558408eb8abfedfdd46e565637c12da
SSDeep: 6144:XXYdbYI7I0qi KbjJj95FPOnDfNqYtDqQ 045X5ARQ plPckkxyOSM3Tq7F2NQt:nYdbVLbQDX45Ax6LxaAxNQt
Size: 400185 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: Armadillov171, MicrosoftVisualC, MicrosoftVisualCv50v60MFC, MicrosoftVisualC50, UPolyXv05_v6
Company: no certificate found
Created at: 2014-02-11 19:17:43
Analyzed on: WindowsXP SP3 32-bit
Summary: Trojan-PSW. Trojan program intended for stealing users passwords.
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan-PSW creates the following process(es):
%original file name%.exe:2808
puemk.exe:2924
puemk.exe:2884
The Trojan-PSW injects its code into the following process(es):
ctfmon.exe:252
File activity
The process %original file name%.exe:2808 makes changes in the file system.
The Trojan-PSW creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\LQUFC13.bat (173 bytes)
%Documents and Settings%\%current user%\Application Data\Ygoxhi\puemk.exe (2721 bytes)
The process ctfmon.exe:252 makes changes in the 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 (4236 bytes)
The process puemk.exe:2924 makes changes in the file system.
The Trojan-PSW creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\ntuser.dat.LOG (9824 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (8844 bytes)
Registry activity
The process %original file name%.exe:2808 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "CF 56 6C 55 92 CB 39 86 CF 58 99 10 03 4C EA 86"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Local AppData" = "%Documents and Settings%\%current user%\Local Settings\Application Data"
The process ctfmon.exe:252 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "46 E3 9B 2A 54 6F F1 82 7C F2 71 8A DA B2 79 AA"
[HKCU\Identities]
"Last User ID" = "{6855BFC2-9E4A-4896-A11D-74388FBABDC2}"
"Last Username" = "Main Identity"
[HKCU\Software\Microsoft\WAB\WAB4]
"OlkFolderRefresh" = "0"
"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\Engaheicgoe]
"b8be501" = "619282721"
The Trojan-PSW deletes the following value(s) in system registry:
[HKCU\Identities]
"Changing"
"OutgoingID"
"IncomingID"
The Trojan-PSW disables automatic startup of the application by deleting the following autorun value:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"internat.exe"
The process puemk.exe:2924 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C6 15 55 7D 31 CC EF 74 CB A6 45 9D 2C 37 73 5D"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Local AppData" = "%Documents and Settings%\%current user%\Local Settings\Application Data"
[HKCU\Software\Microsoft\Engaheicgoe]
"ejf4a1b" = "QoHZJJkmVs2JowyiVoy gw==\"
The process puemk.exe:2884 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "D2 46 3A 0E F3 64 FB 49 F2 1B A1 D6 15 D8 51 8E"
Network activity (URLs)
No activity has been detected.
HOSTS file anomalies
No changes have 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):
%original file name%.exe:2808
puemk.exe:2924
puemk.exe:2884 - Delete the original Trojan-PSW file.
- Delete or disinfect the following files created/modified by the Trojan-PSW:
%Documents and Settings%\%current user%\Local Settings\Temp\LQUFC13.bat (173 bytes)
%Documents and Settings%\%current user%\Application Data\Ygoxhi\puemk.exe (2721 bytes)
%Documents and Settings%\%current user%\ntuser.dat.LOG (5400 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (4236 bytes) - Reboot the computer.