user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Trojan:Win64/Farfli.ADC!MTB
Trojan:Win64/Farfli.ADC!MTB - Windows Defender threat signature analysis

Trojan:Win64/Farfli.ADC!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Win64/Farfli.ADC!MTB
Classification:
Type:Trojan
Platform:Win64
Family:Farfli
Detection Type:Concrete
Known malware family with identified signatures
Variant:ADC
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 64-bit Windows platform, family Farfli

Summary:

This detection identifies a variant of the Farfli family, a well-known Remote Access Trojan (RAT). Once active, Farfli allows an attacker to gain complete control over the infected system, enabling them to steal sensitive information, log keystrokes, and execute arbitrary commands. The '!MTB' suffix indicates this threat was identified by its malicious behavior using machine learning.

Severity:
Medium
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_Win64_Farfli_ADC_2147941919_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:Win64/Farfli.ADC!MTB"
        threat_id = "2147941919"
        type = "Trojan"
        platform = "Win64: Windows 64-bit platform"
        family = "Farfli"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_PEHSTR_EXT"
        threshold = "5"
        strings_accuracy = "High"
    strings:
        $x_4_1 = {2b ca 41 f7 e2 80 c1 36 43 30 0c 03 c1 ea 03 8d 0c 92 03 c9 44 3b d1 4d 0f 44 cf 41 ff c2 49 ff c3 44 3b d7 7c}  //weight: 4, accuracy: High
        $x_1_2 = {41 0f b6 0c 29 4c 8b 43 10 49 ff c1}  //weight: 1, accuracy: High
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: bca6076c27997458cde67a0f6ae51ab00c4708cef8005.dll
bca6076c27997458cde67a0f6ae51ab00c4708cef8005661f3416c6d70690c07
11/11/2025
→VirusTotal↓Download Sample
Filename: 9f42aca3845affd0b92315de44dc54b3f8bcf0116887d3cf2a9f3c526113a9f3
9f42aca3845affd0b92315de44dc54b3f8bcf0116887d3cf2a9f3c526113a9f3
11/11/2025
→VirusTotal↓Download Sample
Remediation Steps:
1. Isolate the affected machine from the network immediately. 2. Use Windows Defender to quarantine and remove the detected threat. 3. Investigate for persistence mechanisms, data exfiltration, and other signs of compromise. 4. Reset all credentials and passwords that were used on the infected system.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 11/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊