Analysis by: Jeffrey Francis Bonaobra
 PLATFORM:

Linux

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted:

  • 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.

  TECHNICAL DETAILS

File Size: 64,392 bytes
File Type: ELF
Memory Resident: No
Initial Samples Received Date: 19 Sep 2026

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 does the following:

  • It is loaded into memory by another malware detected as Backdoor.Linux.KERDOOR.A, which serves as its loader.
  • The loader receives this malware as a parameter, reads it into memory, and attempts to load it as a Linux kernel module.

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 21.328.08
FIRST VSAPI PATTERN DATE: 19 Sep 2026
VSAPI OPR PATTERN File: 21.329.00
VSAPI OPR PATTERN Date: 20 Sep 2026

Scan your computer with your Trend Micro product to delete files detected as Backdoor.Linux.KERDOOR.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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