Author: Joshua John Bantayan   

 

HEUR:Trojan-Ransom.Linux.Agent.g (KASPERSKY)

 PLATFORM:

Linux

 OVER ALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE
Low
Medium
High
Critical

  • Threat Type:
    Ransomware

  • Destructiveness:
    No

  • Encrypted:
    No

  • In the wild:
    Yes

  OVERVIEW

INFECTION CHANNEL: Downloaded from the Internet

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

It drops files as ransom note. It avoids encrypting files with the following file extensions.

  TECHNICAL DETAILS

File size: 212,264 bytes
File type: ELF
Memory resident: Yes
INITIAL SAMPLES RECEIVED DATE: 06 ноября 2020
PAYLOAD: Displays message/message boxes, Encrypts files

Arrival Details

This Ransomware 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 Ransomware does the following:

  • It encrypts all files

Ransomware Routine

This Ransomware avoids encrypting files with the following strings in their file name:

  • !NEWS_FOR_{Victim's Name}!.txt
  • .{Victim's Name}

It appends the following extension to the file name of the encrypted files:

  • .{Victim's Name}

It drops the following file(s) as ransom note:

  • /{Encrypted Directory}/!NEWS_FOR_{Victim's Name})!.txt

It avoids encrypting files with the following file extensions:

  • .{Victim's Name}

  SOLUTION

Minimum scan engine: 9.800
First VSAPI Pattern File: 16.344.02
First VSAPI Pattern Release Date: 11 ноября 2020
VSAPI OPR PATTERN-VERSION: 16.345.00
VSAPI OPR PATTERN DATE: 12 ноября 2020

Scan your computer with your Trend Micro product to delete files detected as Ransom.Linux.EXX.YAAK-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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