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

Backdoor:Linux/Mirai.HH!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Linux/Mirai.HH!MTB
Classification:
Type:Backdoor
Platform:Linux
Family:Mirai
Detection Type:Concrete
Known malware family with identified signatures
Variant:HH
Specific signature variant within the malware family
Suffix:!MTB
Detected via machine learning and behavioral analysis
Detection Method:Behavioral
Confidence:Very High
False-Positive Risk:Low

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

Summary:

This detection identifies a variant of the Mirai botnet, specifically Backdoor:Linux/Mirai.HH, on a Linux platform. This malware typically compromises IoT devices to establish a botnet, enabling distributed denial-of-service (DDoS) attacks and other malicious activities, and is detected via machine learning behavioral analysis (!MTB).

Severity:
Medium
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Backdoor_Linux_Mirai_HH_2147910130_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Backdoor:Linux/Mirai.HH!MTB"
        threat_id = "2147910130"
        type = "Backdoor"
        platform = "Linux: Linux platform"
        family = "Mirai"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_ELFHSTR_EXT"
        threshold = "2"
        strings_accuracy = "Low"
    strings:
        $x_1_1 = {3c 40 1b e5 01 00 74 e3 03 01 00 0a 02 00 54 e3 02 30 e0 03 26 ?? ?? ?? 04 00 54 e3 00 30 a0 13 01 30 a0 03}  //weight: 1, accuracy: Low
        $x_1_2 = {84 40 a0 e1 06 30 84 e2 03 30 c3 e3 0d d0 63 e0 38 c0 4b e2 04 c0 8d e5 07 00 a0 e1 3c c0 4b e2 02 10 a0 e3 60 20 4b e2 10 30 8d e2 08 c0 8d e5 00 40 8d e5 9a 03 00 eb 22 00 50 e3 03 ?? ?? ?? 3c 30 1b e5 01 00 73 e3}  //weight: 1, accuracy: Low
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: nexuscorp.arm
f0a75b228c3a4aaf5177900920cd15740a34cc191b85d46706bb6da4b3a9163b
27/12/2025
→VirusTotal↓Download Sample
Filename: kvariant.arm
bc64a67c420feb303b7f452f7bb05ecabf8e8a098fb3bf6f250f92c780e81418
20/12/2025
→VirusTotal↓Download Sample
Filename: kvariant.arm5
946ab377a4f6f2cd51544054aa1625388ad7a897b3e30670e71c8d14fe04e212
20/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the compromised Linux system. Employ an updated antivirus solution to scan and remove Backdoor:Linux/Mirai.HH, then enforce strong, unique credentials and patch any underlying vulnerabilities. Monitor network traffic for unusual command-and-control communications.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 20/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊