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

Trojan:Linux/Mirai.X!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Linux/Mirai.X!MTB
Classification:
Type:Trojan
Platform:Linux
Family:Mirai
Detection Type:Concrete
Known malware family with identified signatures
Variant:X
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: Trojan - Appears legitimate but performs malicious actions for Linux platform, family Mirai

Summary:

Trojan:Linux/Mirai.X!MTB is a concrete detection of a Mirai botnet variant specifically targeting Linux-based IoT devices. This malware compromises vulnerable systems, enlists them into a botnet, and leverages them to launch distributed denial-of-service (DDoS) attacks.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_Linux_Mirai_X_2147906333_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:Linux/Mirai.X!MTB"
        threat_id = "2147906333"
        type = "Trojan"
        platform = "Linux: Linux platform"
        family = "Mirai"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_ELFHSTR_EXT"
        threshold = "6"
        strings_accuracy = "High"
    strings:
        $x_5_1 = "-r /vi/mips.bushido" ascii //weight: 5
        $x_5_2 = "/bin/busybox chmod 777 * /tmp/" ascii //weight: 5
        $x_1_3 = "POST /ctrlt/DeviceUpgrade_1 HTTP/1.1" ascii //weight: 1
        $x_1_4 = "loadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>" ascii //weight: 1
        $x_1_5 = "POST /cdn-cgi/" ascii //weight: 1
    condition:
        (filesize < 20MB) and
        (
            ((1 of ($x_5_*) and 1 of ($x_1_*))) or
            ((2 of ($x_5_*))) or
            (all of ($x*))
        )
}
Known malware which is associated with this threat:
Filename: x86_64
7a6ee78590313d7bb4d4a874cf76c71634e49939abfacbd34faba205b74e4063
23/01/2026
→VirusTotal↓Download Sample
Filename: arm
bda8da9591a4cddac8c94a60a84c012f7686855b8444465ec9b43a1b5b17eac1
23/01/2026
→VirusTotal↓Download Sample
Filename: arm5
974dfaab25bc4d94c689627e71183c128e6480f7cf1de13da329d4286a459dd9
23/01/2026
→VirusTotal↓Download Sample
Filename: arm7
6e6a2aa1f7858271d1926469a933bee846f5abf1da1661fc86d6954e885020a5
23/01/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the infected Linux device. Update all device firmware and apply security patches, change default and weak credentials, disable unnecessary services, and implement network segmentation for IoT devices. Continuously monitor network traffic for suspicious activity.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 23/01/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊