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ELF_BASHLET.B

October 01, 2014
 ALIASES:

Troj/Daesh-A (Sophos)

 PLATFORM:

Linux, Unix

 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


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:

6,424 bytes

File Type:

ELF

Memory Resident:

Yes

Initial Samples Received Date:

29 Sep 2014

Payload:

Connects to URLs/IPs, 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.

NOTES:

This is a backdoor component.

It accepts the following parameters:

  • Files/directories to delete
  • C&C server
  • Port

It will delete the files/directories specified in its parameters.

It will perform a remote shell after a successful connection to the C&C server and port specified in its parameters.

  SOLUTION

Minimum Scan Engine:

9.700

Scan your computer with your Trend Micro product to delete files detected as ELF_BASHLET.B. 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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