Analysis by: Homer Pacag
ALIASES:

Trojan:Win32/Tatiow.A (Microsoft); Trojan.Win32.EquationDrug.gen (Kaspersky)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

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: 62,464 bytes
File Type: , EXE
Memory Resident: No
Initial Samples Received Date: 18 Feb 2015

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.

Installation

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

  • prkMtx

NOTES:

This Trojan requires its other component to successfully perform its intended routines.

It checks for current user privileges and attempts to elevate privileges if the user has no admin rights. It uses the command line to execute {Malware Path}\Presentation\Show.exe. It loads a DLL component {Malware Path}\Presentation\show.dll, detected as TROJ_EQUATED.SMB. It checks registry if BitDefender or Comodo is installed in the system.

It does not execute if the date is after July 1, 2010.

  SOLUTION

Minimum Scan Engine: 9.750
FIRST VSAPI PATTERN FILE: 11.498.01
FIRST VSAPI PATTERN DATE: 24 Feb 2015
VSAPI OPR PATTERN File: 11.499.00
VSAPI OPR PATTERN Date: 24 Feb 2015

Scan your computer with your Trend Micro product to delete files detected as TROJ_EQUATED.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


Did this description help? Tell us how we did.