user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Backdoor:Linux/Mirai.BX!xp
Backdoor:Linux/Mirai.BX!xp - Windows Defender threat signature analysis

Backdoor:Linux/Mirai.BX!xp - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Linux/Mirai.BX!xp
Classification:
Type:Backdoor
Platform:Linux
Family:Mirai
Detection Type:Concrete
Known malware family with identified signatures
Variant:BX
Specific signature variant within the malware family
Suffix:!xp
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Backdoor - Provides unauthorized remote access for Linux platform, family Mirai

Summary:

This is a concrete detection of Backdoor:Linux/Mirai.BX!xp, a variant of the Mirai botnet family specifically targeting Linux systems. It acts as a backdoor, enabling attackers to gain remote control over the compromised device and enlist it into a botnet for launching Distributed Denial of Service (DDoS) attacks.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Backdoor_Linux_Mirai_BX_2147820432_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Backdoor:Linux/Mirai.BX!xp"
        threat_id = "2147820432"
        type = "Backdoor"
        platform = "Linux: Linux platform"
        family = "Mirai"
        severity = "Critical"
        info = "xp: an internal category used to refer to some threats"
        signature_type = "SIGNATURE_TYPE_ELFHSTR_EXT"
        threshold = "2"
        strings_accuracy = "High"
    strings:
        $x_1_1 = {41 ef 51 68 2f 48 00 32 20 2f 00 5a 58 80 2f 40 00 3e 22 2f 00 5a 06 81 00 00 05 b4 2f 41 00 46 24}  //weight: 1, accuracy: High
        $x_1_2 = {81 72 04 b2 80 65 42 30 3b 0a 06 4e fb 00 02 00 0a 19 72 19 ae 1a 16 19 e2}  //weight: 1, accuracy: High
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: miraint.m68k
1a6807672bf5fa298652e2bf666aedad6aab7b6a29ddd82abfb9b747ea2d7d2f
28/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the infected Linux device to prevent further spread. Remove the malware, ideally by reimaging the system, and ensure all system vulnerabilities are patched. Reset all credentials, especially default or weak ones, and implement strong, unique passwords to prevent reinfection.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 28/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊