Rootkit.Linux.SKIDMAP.C

September 10, 2019

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 Analysis by: Jemimah Mae Molina

---

 PLATFORM:

Linux

 OVERALL RISK RATING:

 DAMAGE POTENTIAL:

 DISTRIBUTION POTENTIAL:

 REPORTED INFECTION:

 INFORMATION EXPOSURE:

• 
  Threat Type: Rootkit
• 
  Destructiveness: No
• 
  Encrypted: No
• 
  In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

This Rootkit 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:

347,785 bytes

File Type:

ELF

Memory Resident:

Yes

Initial Samples Received Date:

04 Sep 2019

Payload:

Blocks traffic

Arrival Details

This Rootkit 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 Rootkit does the following:

• It is used by Trojan.Linux.SKIDMAP.UWEJX for its rootkit capabilities.
• It blocks incoming and outgoing network traffic on the following ports:
  • TCP 3333
  • TCP 4444
  • TCP 5555
  • TCP 443
  • TCP 80
  • TCP 6666
  • TCP 7777
  • TCP 8888
  • TCP 8990
  • TCP 62465
  • UDP 53

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.348.03

FIRST VSAPI PATTERN DATE:

06 Sep 2019

VSAPI OPR PATTERN File:

15.349.00

VSAPI OPR PATTERN Date:

07 Sep 2019

Scan your computer with your Trend Micro product to delete files detected as Rootkit.Linux.SKIDMAP.C. 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:

• Home and Home Office Support
• Business Support

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