TSPY_DOJACK.B

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It connects to certain websites to send and receive information. However, as of this writing, the said sites are inaccessible. It deletes the initially executed copy of itself.

Arrival Details

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This spyware drops the following component file(s):

• %System%\iasadv.dll - also detected as TSPY_DOJACK.B

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)

It drops the following copies of itself into the affected system:

• %System%\rsoppmod.exe

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)

It adds the following mutexes to ensure that only one of its copies runs at any one time:

• F1)a|<9*D[

Autostart Technique

This spyware adds the following registry entries to enable its automatic execution at every system startup:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon
Taskman = %System%\rsoppmod.exe

Stolen Information

This spyware sends the gathered information via HTTP POST to the following URL:

• http://{BLOCKED}4.{BLOCKED}ng.com:80/cxpid/submit.php?SessionID={Random ID}
• http://{BLOCKED}4.{BLOCKED}ng.com:80//send.php?id={Random ID}

Other Details

This spyware connects to the following URL(s) to get the affected system's IP address:

• http://whatismyip.org/

It connects to the following website to send and receive information:

• http://{BLOCKED}4.{BLOCKED}ng.com:80/cxgid/{Computer Name}/{Random Numbers}/{Random Numbers}/index.php
• http://{BLOCKED}4.{BLOCKED}ng.com:80/query.php?id={Random ID}

However, as of this writing, the said sites are inaccessible.

It deletes the initially executed copy of itself