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X2KM_DROPPR.UKX

December 29, 2016
 Analysis by: RonJay Kristoffer Caragay
 ALIASES:

Trojan.Mdropper (Symantec); Trojan-Dropper.VBA.Agent (Ikarus); VBA/TrojanDropper.Agent.SD (ESET-NOD32); X97M/Dropper.l (McAfee)

 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.

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

  TECHNICAL DETAILS

File Size:

4,505,088 bytes

File Type:

XLS

Memory Resident:

No

Initial Samples Received Date:

16 Dec 2016

Payload:

Drops files, Executes files

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 drops and executes the following files:

Dropping Routine

This Trojan executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

Other Details

This is the Trend Micro detection for Microsoft Word documents that are compromised through the insertion of a malicious macro.

NOTES:
The document contains masked data that lures the user to enable macro content.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

13.122.08

FIRST VSAPI PATTERN DATE:

29 Dec 2016

VSAPI OPR PATTERN File:

13.123.00

VSAPI OPR PATTERN Date:

29 Dec 2016

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Remove the malware/grayware file dropped/downloaded by X2KM_DROPPR.UKX. (Note: Please skip this step if the threat(s) listed below have already been removed.)

     
    • TROJ_DLOAD.TEYJQ

Step 4

Scan your computer with your Trend Micro product to delete files detected as X2KM_DROPPR.UKX. 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.

Step 5

Enable the macro virus protection in Microsoft Office Applications

[ Learn More ]


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