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Rootkit.Linux.SKIDMAP.B

September 10, 2019
 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:

868,473 bytes

File Type:

ELF

Memory Resident:

Yes

Initial Samples Received Date:

04 Sep 2019

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 alters network traffic on IP addresses that contain the following values:
    • 3B25
    • 6358
    • 09B0
    • BB25
    • CDAC6B
  • It is used by Trojan.Linux.SKIDMAP.UWEJX for its rootkit capabilities.
  • It alters CPU time of processes with the following name:
    • pamdicks
  • It alters CPU load of the machine to always stay low.
  • It alters network traffic on the following ports:
    • 500
    • 8990
    • 3333
    • 4444
    • 5555
    • 6666
    • 7777
    • 3334
    • 3335
    • 52126
    • 53126

  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.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 the following Trend Micro Support pages for more information:


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