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

Trojan:Linux/MsfShellBin.A - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Linux/MsfShellBin.A
Classification:
Type:Trojan
Platform:Linux
Family:MsfShellBin
Detection Type:Concrete
Known malware family with identified signatures
Variant:A
Specific signature variant within the malware family
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Trojan - Appears legitimate but performs malicious actions for Linux platform, family MsfShellBin

Summary:

Trojan:Linux/MsfShellBin.A is a critical Linux Trojan detected by concrete signatures, indicating a high confidence threat. This malware is likely a Metasploit-generated shellcode or a binder designed to establish remote access, typically by executing a shell like `/bin/sh`, granting an attacker control over the compromised system.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_Linux_MsfShellBin_A_2147794796_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:Linux/MsfShellBin.A"
        threat_id = "2147794796"
        type = "Trojan"
        platform = "Linux: Linux platform"
        family = "MsfShellBin"
        severity = "Critical"
        signature_type = "SIGNATURE_TYPE_ELFHSTR_EXT"
        threshold = "1"
        strings_accuracy = "High"
    strings:
        $x_1_1 = {48 bb 2f 62 69 6e 2f 73 68 00 53 48 89 e7 52 57 48 89 e6 0f 05}  //weight: 1, accuracy: High
        $x_1_2 = {6a 3c 58 6a 01 5f 0f 05 5e 6a 26 5a 0f 05 48 85 c0 78 ed ff e6}  //weight: 1, accuracy: High
        $x_1_3 = {0f 05 48 96 6a 2b 58 0f 05 50 56 5f 6a 09 58 99 b6 10 48 89 d6 4d 31 c9 6a 22 41 5a b2 07 0f 05 48 96 48 97 5f 0f 05 ff e6}  //weight: 1, accuracy: High
    condition:
        (filesize < 20MB) and
        (1 of ($x*))
}
Known malware which is associated with this threat:
Filename: sh.elf
618d185540aa838d4b5315a8ee3c28327bf885dca404f7791c4cdd719985bc6e
10/01/2026
→VirusTotal↓Download Sample
Remediation Steps:
Isolate the compromised Linux system immediately, terminate any malicious processes, and remove the detected malware file. Conduct a full system scan with updated security software, review system logs for signs of further compromise, and apply all necessary security patches. Implement or reinforce host-based firewalls and network segmentation.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 10/01/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊