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ELF_GETSHELL.SMA

April 27, 2023
 ALIASES:

Backdoor:Linux/GetShell.B!xp (MICROSOFT)

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

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

152 bytes

File Type:

ELF

Memory Resident:

No

Initial Samples Received Date:

25 Apr 2023

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.

Other Details

This Backdoor connects to the following possibly malicious URL:

  • {BLOCKED}.{BLOCKED}.15.101:8512

It does the following:

  • It attempts to establish a connection to {BLOCKED}.{BLOCKED}.15.101 for command and control.

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

13.302.05

FIRST VSAPI PATTERN DATE:

27 Mar 2017

VSAPI OPR PATTERN File:

13.303.00

VSAPI OPR PATTERN Date:

28 Mar 2017

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

     Troj.ELF.TRX.XXELFC1DFF027

Step 2

Scan your computer with your Trend Micro product to delete files detected as ELF_GETSHELL.SMA. 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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