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TROJ_UPATRE.AAY

August 06, 2014
 Modified by: RonJay Kristoffer Caragay
 ALIASES:

TrojanDownloader:Win32/Upatre.AA (Microsoft); Trojan.Cryptodefense (Symantec); Trojan.Win32.Badur.iqtx (Kaspersky); Troj/Wonton-FA (Sophos); Trojan.Win32.Kryptik.chiu (v) (Sunbelt); Trojan:W32/Agent.DVBD (FSecure); Trojan horse Downloader.Generic13.CMAC (AVG)

 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.

It deletes itself after execution.

  TECHNICAL DETAILS

File Size:

25,600 bytes

File Type:

EXE

Initial Samples Received Date:

24 Jul 2014

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.

Dropping Routine

This Trojan drops the following files:

  • %User Temp%\ioing.exe
  • %User Temp%\zgeca.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.)

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}4.23.247.202/2307stat/{host name}/
  • http://{BLOCKED}arkdigitalsolutions.com/css/tor2800_2.7z
  • http://{BLOCKED}heft.{BLOCKED}sonline.com/css/tor2800_2.7z

It deletes itself after execution.