user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Trojan:MacOS/Amos.BU!MTB
Trojan:MacOS/Amos.BU!MTB - Windows Defender threat signature analysis

Trojan:MacOS/Amos.BU!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:MacOS/Amos.BU!MTB
Classification:
Type:Trojan
Platform:MacOS
Family:Amos
Detection Type:Concrete
Known malware family with identified signatures
Variant:BU
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 macOS platform, family Amos

Summary:

Trojan:MacOS/Amos.BU!MTB represents a concrete and critical threat targeting MacOS devices. This specific variant of the Amos Trojan family is designed to compromise the system, potentially facilitating unauthorized access, data theft, or further malware deployment, as evidenced by its malicious behavioral patterns and distinct code signatures.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_MacOS_Amos_BU_2147926542_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:MacOS/Amos.BU!MTB"
        threat_id = "2147926542"
        type = "Trojan"
        platform = "MacOS: "
        family = "Amos"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_MACHOHSTR_EXT"
        threshold = "2"
        strings_accuracy = "Low"
    strings:
        $x_1_1 = {45 8b 4d 2c 41 8d 04 19 83 f8 01 0f 86 ce 00 00 00 41 8b 45 24 8d 54 18 fe 48 89 d1 bf ff 7f 00 00 48 21 f9 41 0f b6 b4 0d c8 00 00 00 8d 4c 18 ff 48 21 f9 45 0f b6 94 0d c8 00 00 00 b9 02 01 00 00 29 d9 49 39 cf 49 0f 42 cf 4d 89 f8}  //weight: 1, accuracy: High
        $x_1_2 = {4d 89 bd b8 00 00 00 31 c0 49 89 85 c0 00 00 00 45 89 8d a8 00 00 00 49 39 45 00 0f 94 c0 48 89 ce 4c 09 c6 0f 95 c3 30 c3 75 ?? 41 83 bd 84 00 00 00 00 75 ?? 41 8b 85 80 00 00 00 41 83 f9 04}  //weight: 1, accuracy: Low
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: 545dd5cba264bf242bc837330ca34247e202f7ac25f03eec63bf5842357519f1
545dd5cba264bf242bc837330ca34247e202f7ac25f03eec63bf5842357519f1
25/01/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the compromised MacOS system from the network. Perform a full scan with updated anti-malware software to quarantine and remove all detected malicious files. If sensitive data (e.g., credentials) may have been compromised, change passwords for all relevant accounts and consider a clean OS reinstallation or restoration from a known good backup.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 25/01/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊