MD5: b87b2b6a6cff2a0eaefa864223603bfc
SHA1: f428982033773a82993c5eee5928cba2581986ad
SHA256: 623bd105aaf8e69d8e3c4192b89f6f04b51f626d6a39c756919b3892d9c451d1
SSDeep: 6144:hmqsNqA/vaTD9r5SYbBZnmnMlZ lXhFuER553nw7ilzpFfn674sZcuH8P:XDKvm9r5SqPnmMlsuuw7ilzpN67xcuY
Size: 316928 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2010-07-13 15:43:11

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):

mexoig.exe:832
%original file name%.exe:300

The Trojan-PSW injects its code into the following process(es):

ctfmon.exe:1224

File activity

The process mexoig.exe:832 makes changes in the file system.
The Trojan-PSW creates and/or writes to the following file(s):

%Documents and Settings%\%current user% (28672 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (106496 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT.LOG (30208 bytes)

The process %original file name%.exe:300 makes changes in the file system.
The Trojan-PSW creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\Givio (4096 bytes)
%Documents and Settings%\%current user%\Application Data\Givio\mexoig.exe (636416 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\JOK36E9.bat (174 bytes)

Registry activity

The process mexoig.exe:832 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" = "05 EB 71 1A 90 1D 26 21 AE E1 90 CF 98 18 15 63"

[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\Ifqutubeij]
"1ajd4j13" = "7E DA 71 06 32 4A 23 CB F8 07 24 6E 5E AC"

The process ctfmon.exe:1224 makes changes in the system registry.
The Trojan-PSW deletes the following value(s) in system registry:
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 %original file name%.exe:300 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" = "74 1B 6D CB DF CD 10 EC 60 6F ED DE 37 12 18 D4"

[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"

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:

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

Remove it with Ad-Aware

1. Click (here) to download and install Ad-Aware Free Antivirus.
2. Update the definition files.
3. Run a full scan of your computer.

Manual removal*

1. Scan a system with an anti-rootkit tool.
   
2. Terminate malicious process(es) (How to End a Process With the Task Manager):
   

   mexoig.exe:832
   %original file name%.exe:300

3. Delete the original Trojan-PSW file.
   
4. Delete or disinfect the following files created/modified by the Trojan-PSW:
   

   %Documents and Settings%\%current user% (28672 bytes)
   %Documents and Settings%\%current user%\NTUSER.DAT (106496 bytes)
   %Documents and Settings%\%current user%\NTUSER.DAT.LOG (30208 bytes)
   %Documents and Settings%\%current user%\Application Data\Givio (4096 bytes)
   %Documents and Settings%\%current user%\Application Data\Givio\mexoig.exe (636416 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\JOK36E9.bat (174 bytes)

5. Reboot the computer.
   

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.