TROJ_INJECT.CUO

 Analysis by: Anthony Joe Melgarejo

 ALIASES:

LooksLike.Win32.Reveton.c (v) (GFI), Worm/Qakbot.AC (Antivir), W32/Injector.IEVC!tr (Fortinet), probably a variant of Win32/Agent.GAUSLXV trojan (ESET)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


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.

  TECHNICAL DETAILS

File Size:

135,242 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

05 May 2013

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 adds the following registry entries as part of its installation routine:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Process\{malware file name}\DEBUG
Trace Level = ""

It adds the following registry keys as part of its installation routine:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Process\{malware file name}

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Process\{malware file name}\DEBUG

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}206218.{BLOCKED}x.net