Analysis by: Cris Nowell Pantanilla
 PLATFORM:

Linux

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

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.

  TECHNICAL DETAILS

File Size: 801561 bytes
File Type: ELF
Memory Resident: Yes
Initial Samples Received Date: 09 Dec 2014
Payload: Compromises system security

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.

Backdoor Routine

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

  • news-bbc.{BLOCKED}e.org
  • {BLOCKED}.{BLOCKED}.65.183

NOTES:

This backdoor downloads and executes the following file:

  • /tmp/.xdfg

It then deletes the file after execution.

It is capable of the following actions:

  • Connect to a remote host
  • Sync files from a remote host
  • Upload files
  • Download and execute files
  • Set the environment variable

  SOLUTION

Minimum Scan Engine: 9.700

Scan your computer with your Trend Micro product to delete files detected as BKDR_TURLA.YKX. 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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