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BKDR_RESCOMS.AX

February 01, 2018
 Analysis by: Patrick Angelo Roderno
 ALIASES:

HEUR:Trojan.Win32.Generic (KASPERSKY), Trojan:Win32/Skeeyah.A!bit (MICROSOFT), Trojan.GenericKD.5031265 (BITDEFENDER), Generic Trojan.i (NAI)

 PLATFORM:

Windows

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW


This Backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

698,520 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

10 May 2017

Arrival Details

This Backdoor 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 Backdoor adds the following processes:

  • notepad.exe

It injects codes into the following process(es):

  • notepad.exe

Other Details

This Backdoor connects to the following possibly malicious URL:

  • {BLOCKED}.{BLOCKED}.29.220

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.396.04

FIRST VSAPI PATTERN DATE:

10 May 2017

VSAPI OPR PATTERN File:

13.397.00

VSAPI OPR PATTERN Date:

11 May 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

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

Scan your computer with your Trend Micro product to delete files detected as BKDR_RESCOMS.AX. 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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