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

Trojan:Linux/Kaiji.D!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Linux/Kaiji.D!MTB
Classification:
Type:Trojan
Platform:Linux
Family:Kaiji
Detection Type:Concrete
Known malware family with identified signatures
Variant:D
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 Kaiji

Summary:

This is a concrete detection of a Linux-based Trojan from the Kaiji family, known for establishing botnets and launching DDoS attacks. Detected via machine learning behavioral analysis (MTB), it represents a significant and confirmed threat to Linux systems.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_Linux_Kaiji_D_2147911019_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:Linux/Kaiji.D!MTB"
        threat_id = "2147911019"
        type = "Trojan"
        platform = "Linux: Linux platform"
        family = "Kaiji"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_ELFHSTR_EXT"
        threshold = "2"
        strings_accuracy = "High"
    strings:
        $x_1_1 = {10 00 00 06 00 00 00 00 3c 14 00 25 02 9c a0 2d 66 94 e7 10 0c 02 55 f6 00 00 00 00 3c 17 00 28}  //weight: 1, accuracy: High
        $x_1_2 = {15 80 ff ed 00 00 00 00 ff aa 00 50 ff a1 00 40 ff a9 00 08 ff a8 00 10 ff ab 00 18 0c 00 48 ce 00 00 00 00 93 a1 00 20 14 20 00 0a 00 00 00 00 df a1 00 40 df a3 00 58 df a4 00 38 93 a5 00 2f df a6 00 88 df a7 00 60 df a8 00 70 10 00 ff da}  //weight: 1, accuracy: High
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: linux_mips64
3d028580601e9b614ed5074741ad0756c9c383e353924c3a023dd78e867e7f92
16/01/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the compromised Linux system from the network. Conduct a full system scan with an updated endpoint security solution to quarantine and remove the Trojan. Review system logs for any post-exploitation activity, update all software and OS components to their latest versions, and consider changing credentials or rebuilding the system if the full extent of compromise is uncertain.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 16/01/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊