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ELF_SHELLBIND.A

July 18, 2017
 Analysis by: Marvelous Pelin
 PLATFORM:

Linux

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet


This malware opens a command shell on the targeted system. It mainly targets IoT devices, particularly Network Attached Storage (NAS) devices. It also targets MIPS, ARM, and PowerPC.

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

It connects to certain websites to send and receive information.

  TECHNICAL DETAILS

File Size:

70,648 bytes

File Type:

ELF

Memory Resident:

Yes

Initial Samples Received Date:

04 Jul 2017

Payload:

Connects to URLs/IPs

Arrival Details

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

Other Details

This Trojan connects to the following website to send and receive information:

  • {BLOCKED}.{BLOCKED}.128.123

NOTES:

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

tcp/61422

It requires the following password to grant user access:

Q8pGZFS7N1MObJHf

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.512.03

FIRST VSAPI PATTERN DATE:

04 Jul 2017

VSAPI OPR PATTERN File:

13.513.00

VSAPI OPR PATTERN Date:

05 Jul 2017

Scan your computer with your Trend Micro product to delete files detected as ELF_SHELLBIND.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 this Knowledge Base page for more information.


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