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

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

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Linux/HiddenRevShell.A!MTB
Classification:
Type:Trojan
Platform:Linux
Family:HiddenRevShell
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 HiddenRevShell

Summary:

This is a Linux Trojan (HiddenRevShell family) designed to establish a covert reverse shell, granting unauthorized remote access to the compromised system. Detected via concrete signatures and machine learning behavioral analysis, it poses a critical threat by facilitating potential command execution and data exfiltration.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_Linux_HiddenRevShell_A_2147936335_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:Linux/HiddenRevShell.A!MTB"
        threat_id = "2147936335"
        type = "Trojan"
        platform = "Linux: Linux platform"
        family = "HiddenRevShell"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_ELFHSTR_EXT"
        threshold = "4"
        strings_accuracy = "High"
    strings:
        $x_2_1 = {89 45 cc 48 8d 4d d0 8b 45 cc ba 10 00 00 00 48 89 ce 89 c7 e8}  //weight: 2, accuracy: High
        $x_2_2 = {48 89 45 e0 48 c7 45 e8 00 00 00 00 48 8d 45 e0 ba 00 00 00 00 48 89 c6}  //weight: 2, accuracy: High
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: reverse.elf
5e9550d94a227afa855100d2312dc24c90b39e90a2def1238973d612c0bb8166
10/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected Linux system. Terminate any running malicious processes, remove the detected file, and thoroughly scan the system for additional malware or persistence mechanisms. Review system logs for signs of further compromise and patch all vulnerable software.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 10/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊