TROJ_DROPPR.DAV

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.

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%\nsk1.tmp
• %System Root%\SERVER~1.EXE

(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, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.. %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\OKddos DDOS soft Service
Description = "This's OKddos attacker's service if you del the srv okddos will is can't working"

Dropping Routine

This Trojan drops the following files:

• \Server_se.exe
• \Sudden Attack Check.exe
• %System%\drivers\ApiHooks.sys
• %System%\Server_se.exe

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

Other Details

This Trojan connects to the following possibly malicious URL:

• http://snakeddos.{BLOCKED}2.org/1.exe

This report is generated via an automated analysis system.