Analysis by: Miguel Carlo Ang
ALIASES:

Trojan.Ransom.Kriptovor(ALYac);TR/Spy.Banker.Gen(Avira);a variant of Win32/TrojanDownloader.Delf.BCK(ESET-NOD32)

 PLATFORM:

Windows

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

  • 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: 839,168 bytes
File Type: DOC
Memory Resident: No
Initial Samples Received Date: 15 Apr 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.

NOTES:

This malware lures the victims to execute the malware embedded in the file by posing as a resume in .PDF format (using a .PDF icon) bearing the descriptions. Translated to English, the desciption reads: "Double-click to open the resume in Adobe Reader".

  SOLUTION

Minimum Scan Engine: 9.750
FIRST VSAPI PATTERN FILE: 11.620.04
FIRST VSAPI PATTERN DATE: 17 Jan 2015
VSAPI OPR PATTERN File: 11.621.00
VSAPI OPR PATTERN Date: 17 Jan 2015

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product to delete files detected as W2KM_MDROP.XXTYF. 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.


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