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

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

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Linux/Mirai.DJ!MTB
Classification:
Type:Backdoor
Platform:Linux
Family:Mirai
Detection Type:Concrete
Known malware family with identified signatures
Variant:DJ
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 is a Mirai botnet variant targeting Linux systems, identified via behavioral analysis. It functions as a backdoor, gaining unauthorized remote access and likely attempts to recruit the compromised device into a larger botnet by downloading and executing additional payloads for specific architectures.

Severity:
Medium
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Backdoor_Linux_Mirai_DJ_2147849384_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Backdoor:Linux/Mirai.DJ!MTB"
        threat_id = "2147849384"
        type = "Backdoor"
        platform = "Linux: Linux platform"
        family = "Mirai"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_ELFHSTR_EXT"
        threshold = "4"
        strings_accuracy = "Low"
    strings:
        $x_1_1 = "/var/CondiBot" ascii //weight: 1
        $x_1_2 = "boatnet" ascii //weight: 1
        $x_1_3 = {2f 62 69 6e 2f 7a 68 74 74 70 64 2f ?? ?? ?? ?? ?? ?? 63 64 ?? ?? ?? ?? ?? ?? 2f 74 6d 70 3b ?? ?? ?? ?? ?? ?? 72 6d ?? ?? ?? ?? ?? ?? 2d 72 66 ?? ?? ?? ?? ?? ?? 2a 3b ?? ?? ?? ?? ?? ?? 77 67 65 74 ?? ?? ?? ?? ?? ?? 68 74 74 70 3a 2f 2f [0-21] 2f 6d 69 70 73 3b ?? ?? ?? ?? ?? ?? 63 68 6d 6f 64}  //weight: 1, accuracy: Low
        $x_1_4 = "/tmp/condinetwork" ascii //weight: 1
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: mips
064d3f5754a1730f796a4ad988cf1c6aba359dd4e08ec15dc56cd4d2da0f2910
21/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the infected Linux host. Remove the detected malicious files and any associated persistence mechanisms. Patch underlying vulnerabilities that allowed the compromise, reset compromised credentials, and monitor network traffic for command-and-control (C2) communications.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 21/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊