TROJ_DOWNLOADER_0000656.TOMA

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

It deletes itself after execution.

Arrival Details

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

Other System Modifications

This Trojan deletes the following files:

• %User Temp%\OPFRUDLGLDVX.txt.305
• %User Temp%\ZTRVTMUPQIMV.txt.535
• %User Temp%\FJFFFHYNWPMT.txt.700
• %User Temp%\TWWRWHWWIDPT.txt.321
• %User Temp%\TCWVWZJSFABF.txt.327
• %User Temp%\CFSZXEFNDAGH.txt.740
• %User Temp%\XUUHNJSANHGR.txt.611
• %User Temp%\HPENSQFSXFJN.txt.293

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)

Dropping Routine

This Trojan drops the following files:

• %System%\f873348001.dll
• %System Root%\$$30689.bat

(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.. %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

Other Details

This Trojan connects to the following possibly malicious URL:

• http://d1.{BLOCKED}s.cn/rsps/rpv_wmpvs142.txt
• http://d5.{BLOCKED}s.cn/rsps/rpv_wmpvs142.txt
• http://d2.{BLOCKED}s.cn/rsps/rpv_wmpvs142.txt
• http://d6.{BLOCKED}s.cn/rsps/rpv_wmpvs142.txt

It deletes itself after execution.

This report is generated via an automated analysis system.