ELF_IMEIJ.A

February 27, 2017
 Analysis by: Cris Nowell Pantanilla
 PLATFORM:

LINUX ARM

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

New Linux Arm malware spread via RFIs in cgi-bin scripts.

This Backdoor executes commands from a remote malicious user, effectively compromising the affected system. It connects to a website to send and receive information.

  TECHNICAL DETAILS

File Size:

676,245 bytes

File Type:

ELF

Memory Resident:

Yes

Initial Samples Received Date:

28 Feb 2017

Payload:

Connects to URLs/IPs

Arrival Details

This Backdoor may be downloaded from the following remote sites:

  • http://{BLOCKED}.{BLOCKED}.116.3:8080/Arm1
  • http://{BLOCKED}.{BLOCKED}.116.21:85/Arm1
  • http://{BLOCKED}.{BLOCKED}.108.2:8080/Arm1

Backdoor Routine

This Backdoor opens the following port(s) where it listens for remote commands:

  • 127.0.0.1:39999

It executes the following commands from a remote malicious user:

  • Get system info
  • Get CPU info
  • Get network activity
  • Execute Shell
  • Perform DDOS Attack
  • Kill self

It connects to the following websites to send and receive information:

  • {BLOCKED}.{BLOCKED}.108.2

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.246.10

FIRST VSAPI PATTERN DATE:

28 Feb 2017

VSAPI OPR PATTERN File:

13.247.00

VSAPI OPR PATTERN Date:

01 Mar 2017

Scan your computer with your Trend Micro product to delete files detected as ELF_IMEIJ.A. 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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