user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Ransom:Win32/LockFile.ALK!MTB
Ransom:Win32/LockFile.ALK!MTB - Windows Defender threat signature analysis

Ransom:Win32/LockFile.ALK!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Ransom:Win32/LockFile.ALK!MTB
Classification:
Type:Ransom
Platform:Win32
Family:LockFile
Detection Type:Concrete
Known malware family with identified signatures
Variant:ALK
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: Ransomware - Encrypts files and demands payment for 32-bit Windows platform, family LockFile

Summary:

This is a concrete detection for LockFile.ALK ransomware, a variant that encrypts files and steals data, demanding a ransom payment. The detection is highly accurate, leveraging specific binary signatures and recognizable ransom note text indicating both data exfiltration and encryption.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Ransom_Win32_LockFile_ALK_2147946752_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Ransom:Win32/LockFile.ALK!MTB"
        threat_id = "2147946752"
        type = "Ransom"
        platform = "Win32: Windows 32-bit platform"
        family = "LockFile"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_PEHSTR_EXT"
        threshold = "6"
        strings_accuracy = "High"
    strings:
        $x_3_1 = {0f bd f7 0f bd d1 83 f6 1f 83 f2 1f 83 ce 20 80 7c 24 10 00 0f 44 d6 0f bd f3 0f bd c8 83 f6 1f 83 f1 1f 83 ce 20 85 c0 0f 45 f1 83 ce 40 0b 7c 24 08 0f 45 f2 6a 7b 5f 29 f7}  //weight: 3, accuracy: High
        $x_2_2 = "Your infrastructure DeadLocked" ascii //weight: 2
        $x_1_3 = "All Files stolen and encrypted" ascii //weight: 1
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: 3cd5703d285ed2753434f14f8da933010ecfdc1e5009d0e438188aaf85501612.bin
3cd5703d285ed2753434f14f8da933010ecfdc1e5009d0e438188aaf85501612
22/01/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the infected system from the network to prevent further spread. Fully remove the LockFile.ALK ransomware using a reputable security solution, and restore encrypted or stolen files from secure, offline backups. Do not pay the ransom. Implement strong endpoint protection, user awareness training, and ensure regular backups to prevent future infections.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 22/01/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊