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

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

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Linux/Mirai.AY!MTB
Classification:
Type:Backdoor
Platform:Linux
Family:Mirai
Detection Type:Concrete
Known malware family with identified signatures
Variant:AY
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 malware targeting Linux-based systems, such as IoT devices. The malware functions as a backdoor, allowing attackers to control the device and use it in a botnet for DDoS attacks. The detection is high-confidence due to unique strings found within the malware executable.

Severity:
High
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Backdoor_Linux_Mirai_AY_2147754433_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Backdoor:Linux/Mirai.AY!MTB"
        threat_id = "2147754433"
        type = "Backdoor"
        platform = "Linux: Linux platform"
        family = "Mirai"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_ELFHSTR_EXT"
        threshold = "5"
        strings_accuracy = "High"
    strings:
        $x_1_1 = "Self Rep Fucking NeTiS and Thisity" ascii //weight: 1
        $x_1_2 = "FuCkInG FoReHeAd We BiG L33T HaxErS" ascii //weight: 1
        $x_1_3 = "User-Agent" ascii //weight: 1
        $x_1_4 = "ijvon" ascii //weight: 1
        $x_1_5 = "aJPMOG" ascii //weight: 1
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: morte.arm5
00ff3c9b845f57259d8a8245d61f9cfe0ee7a1153f2bd582039f9471dd5d3bf9
04/12/2025
→VirusTotal↓Download Sample
Filename: morte.arm5
657de15a852f5c0e19920bf2523f75d7608aabf41dd1a49f42cabacf2ab1d7b4
04/12/2025
→VirusTotal↓Download Sample
db9ccc4cb109160d5e308fe48b98a286af5fc226fcc2e07c6b77c2e33057974a
04/12/2025
→VirusTotal↓Download Sample
Filename: morte.mpsl
57b85033fc3c849f07dc2006fa0b87fd813f333c686de9864360ff246818ba72
04/12/2025
→VirusTotal↓Download Sample
Filename: morte.arc
58ef66b5ce06fc7678e16c07687ec3e99287a82441a8e3b1c3583c572726a617
04/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the compromised device from the network to prevent further malicious activity. Re-flash the device firmware from a trusted source or perform a factory reset to remove the malware. Secure the device by changing all default credentials to strong passwords and disabling unnecessary services like Telnet.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 18/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊