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

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

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Linux/Mirai.DB!MTB
Classification:
Type:Backdoor
Platform:Linux
Family:Mirai
Detection Type:Concrete
Known malware family with identified signatures
Variant:DB
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 Linux binary as a variant of the Mirai botnet malware. The malware is designed to infect IoT and Linux devices, incorporating them into a botnet used to conduct large-scale Distributed Denial of Service (DDoS) attacks and terminate other processes on the compromised system.

Severity:
High
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Backdoor_Linux_Mirai_DB_2147832483_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Backdoor:Linux/Mirai.DB!MTB"
        threat_id = "2147832483"
        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 = "High"
    strings:
        $x_1_1 = "attack_vector_udp" ascii //weight: 1
        $x_1_2 = "killer_pid" ascii //weight: 1
        $x_1_3 = "killer_kill_by_port" ascii //weight: 1
        $x_1_4 = "attack_kill_all" ascii //weight: 1
        $x_1_5 = "killer_realpath" ascii //weight: 1
        $x_1_6 = "attack_ongoing" ascii //weight: 1
        $x_1_7 = "init_killer" ascii //weight: 1
    condition:
        (filesize < 20MB) and
        (4 of ($x*))
}
Known malware which is associated with this threat:
Filename: dbg
7da1a369267bcd4ca804090e4053c887ec6379e70f1fe247c064ab8e32411b30
06/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Quarantine and delete the detected file using your security software. Isolate the host from the network and investigate the file's origin. Scan your network for other vulnerable Linux or IoT devices, immediately change any default credentials, and ensure all device firmware is up to date.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 06/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊