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BKDR_ISMALL.SMZTDD

December 30, 2016
 Modified by: Julie Anne Cabuhat
 ALIASES:

Backdoor.Farfli.AN (BitDefender)

 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 listens on port(s). It executes commands from a remote malicious user, effectively compromising the affected system.

  TECHNICAL DETAILS

File Size:

164,864 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

26 Dec 2016

Payload:

Connects to URLs/IPs

Backdoor Routine

This backdoor listens on the following port(s):

  • 443

It executes the following commands from a remote malicious user:

  • Search files and directories
  • Delete files
  • Create and delete pipes
  • Terminate itself
  • Start a process

It connects to the following URL(s) to send and receive commands from a remote malicious user:

  • https://{BLOCKED}.{BLOCKED}.167.2

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

12.504.06

FIRST VSAPI PATTERN DATE:

03 May 2016

VSAPI OPR PATTERN File:

12.505.00

VSAPI OPR PATTERN Date:

04 May 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

Scan your computer with your Trend Micro product to delete files detected as BKDR_ISMALL.SMZTDD. 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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