HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Urausy.ec (v) (VIPRE), Virus.Agent!IK (Emsisoft), Trojan-PSW.Win32.Zbot.4.FD, GenericInjector.YR (Lavasoft MAS)Behaviour: Trojan-PSW, Trojan, Virus
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 5e4b42dd6aa14a8a13df48fe61526bd7
SHA1: fa3079d0718bb8a2691e593c8e5bbca0513f08dd
SHA256: 843ac8e72dc5e66d0647b6efe3f068f6f913a489acff7333450d7a7dd62f0a78
SSDeep: 6144:DveH4vkWgpXQxEulAY4rLCScQNhx74OVfpTZirDSrHziy:DveH4HgpX4l9ScgxR5pTZirDeiy
Size: 304128 bytes
File type: PE32
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: AirInstaller Inc.
Created at: 2003-11-14 01:15:40
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):
yskauc.exe:840
5e4b42dd6aa14a8a13df48fe61526bd7.exe:1820
File activity
The process yskauc.exe:840 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 (6656 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (6308 bytes)
The process 5e4b42dd6aa14a8a13df48fe61526bd7.exe:1820 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\OVCCD55.bat (173 bytes)
%Documents and Settings%\%current user%\Application Data\Arpiw\yskauc.exe (1729 bytes)
Registry activity
The process yskauc.exe:840 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" = "9B ED 42 F0 80 33 31 7A B4 0A 8F 60 1B 0C 4C 78"
[HKCU\Software\Microsoft\Neekoda]
"251hg7h9" = "D3 40 4C 41 0A 06 D1 6E E4 28 FC EC"
[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 5e4b42dd6aa14a8a13df48fe61526bd7.exe:1820 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" = "2B BD 25 EF 15 37 CB 9A 84 55 9E 1D 66 C4 6B 2C"
[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"
Network activity (URLs)
| URL | IP |
|---|---|
| hxxp://www.google.com/ | 173.194.43.18 |
| hxxp://www.google.ca/?gws_rd=cr | 173.194.43.24 |
Rootkit activity
The Trojan-PSW installs the following user-mode hooks in WININET.dll:
HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetWriteFile
InternetWriteFileExA
InternetQueryDataAvailable
HttpQueryInfoW
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle
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:
DecryptMessage
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):
yskauc.exe:840
5e4b42dd6aa14a8a13df48fe61526bd7.exe:1820 - 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 (6656 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\OVCCD55.bat (173 bytes)
%Documents and Settings%\%current user%\Application Data\Arpiw\yskauc.exe (1729 bytes) - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.