Analysis by: Rheniel Rhay Ramos
ALIASES:

Trojan.Win32.Agent.ikyo (Kapersky); Trojan.GenericKD.6293301 (Bitdefender)

 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: Dropped by other malware

This Trojan arrives as a component bundled with malware/grayware packages.

  TECHNICAL DETAILS

File Size: 90,624 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 12 Dec 2017

Arrival Details

This Trojan arrives as a component bundled with malware/grayware packages.

Other Details

This Trojan does the following:

  • It runs using the following arguments:
    • task - yields tasklist
    • reverse_https addr/fqdn:port - tests STARTability of meterpreter
    • load reg - tests LOADability of binary through registry
    • load http(s)://site/bin - tests LOADability of binary directly
    • run reg [configspace] - loads binary, patches it and runs it through registry
    • run https(s)://site/bin [configspace] - loads binary, patches it and runs it directly
    • (configspace is passed by patching binary image)
  • It may be used by another malware which will also be the one to pass down an argument.

  SOLUTION

Minimum Scan Engine: 9.850
FIRST VSAPI PATTERN FILE: 13.838.06
FIRST VSAPI PATTERN DATE: 12 Dec 2017
VSAPI OPR PATTERN File: 13.839.00
VSAPI OPR PATTERN Date: 13 Dec 2017

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 TROJ_INJECT.MTKR. 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 the following Trend Micro Support pages for more information:


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