user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Trojan:Win32/LummaStealer
Trojan:Win32/LummaStealer - Windows Defender threat signature analysis

Trojan:Win32/LummaStealer - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Win32/LummaStealer
Classification:
Type:Trojan
Platform:Win32
Family:LummaStealer
Detection Type:Concrete
Known malware family with identified signatures
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Trojan - Appears legitimate but performs malicious actions for 32-bit Windows platform, family LummaStealer

Summary:

Trojan:Win32/LummaStealer is a high-impact information-stealing malware designed to harvest sensitive data from compromised systems. It targets credentials from web browsers, cryptocurrency wallets, system information, and other personal files, exfiltrating the stolen data to attacker-controlled servers. The detection is concrete and corroborated by external threat intelligence, indicating an active and dangerous threat.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_Win32_LummaStealerClick_A_2147931073_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:Win32/LummaStealerClick.A!MTB"
        threat_id = "2147931073"
        type = "Trojan"
        platform = "Win32: Windows 32-bit platform"
        family = "LummaStealerClick"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_CMDHSTR_EXT"
        threshold = "5"
        strings_accuracy = "High"
    strings:
        $x_1_1 = "powershell" wide //weight: 1
        $x_1_2 = "-split ($" wide //weight: 1
        $x_1_3 = ".CreateDecryptor(" wide //weight: 1
        $x_1_4 = "-replace" wide //weight: 1
        $x_1_5 = ".Substring(" wide //weight: 1
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: e132be181eb9a803a95b4009de529fa1db1ccc7b8fc8b19dc17d1b9eb26bac14
e132be181eb9a803a95b4009de529fa1db1ccc7b8fc8b19dc17d1b9eb26bac14
13/12/2025
→VirusTotal↓Download Sample
Filename: 08271d2a933d0023bb363fc2361ca12d.exe
1e60a4c5b20946ed54ccefa96a03f93ad6873b494e14a30249eb9d31f22ac1dd
16/11/2025
→VirusTotal↓Download Sample
Filename: 13d2b769d5296310c2c0edbb6474a981d022eed4bfa78dcc2527b62935827ae5.exe
13d2b769d5296310c2c0edbb6474a981d022eed4bfa78dcc2527b62935827ae5
15/11/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected endpoint from the network to prevent further data exfiltration or lateral movement. Run a full antivirus scan to remove all malicious components. Since this is an information stealer, reset all passwords and invalidate session tokens for any accounts accessed from the compromised machine, and closely monitor for fraudulent activity.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 15/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊