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

Trojan:Linux/AutoColor.A!MTB - Windows Defender Threat Analysis

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

Summary:

Trojan:Linux/AutoColor.A!MTB is a Linux Trojan that establishes persistence and stealth through the manipulation of the `ld.so.preload` mechanism. It monitors network connections and logs activity, indicating capabilities for remote access, data exfiltration, or further system compromise.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_Linux_AutoColor_A_2147940006_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:Linux/AutoColor.A!MTB"
        threat_id = "2147940006"
        type = "Trojan"
        platform = "Linux: Linux platform"
        family = "AutoColor"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_ELFHSTR_EXT"
        threshold = "6"
        strings_accuracy = "High"
    strings:
        $x_2_1 = "auto-color" ascii //weight: 2
        $x_2_2 = "/door-%d.log" ascii //weight: 2
        $x_1_3 = "/proc/net/tcp" ascii //weight: 1
        $x_1_4 = "/etc/ld.so.preload.xxx" ascii //weight: 1
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: blue
2eb1f0e79df57af300f05c95fd829742c3813217a630cce7d4e5dfc626abb416
09/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the infected Linux system. Remove the malicious `auto-color` executable and any associated persistence entries in `/etc/ld.so.preload`. Conduct a full system scan, review logs for further compromise, and reset all affected user credentials.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 08/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
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