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

Trojan:Win64/BumbleBee.CA!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Win64/BumbleBee.CA!MTB
Classification:
Type:Trojan
Platform:Win64
Family:BumbleBee
Detection Type:Concrete
Known malware family with identified signatures
Variant:CA
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 BumbleBee

Summary:

Trojan:Win64/BumbleBee.CA!MTB is a concrete detection of BumbleBee, a highly sophisticated malware loader and initial access broker. It's known for its role in deploying further malicious payloads, such as ransomware or info-stealers, and often originates from phishing campaigns. The detection is further reinforced by machine learning behavioral analysis, indicating observed malicious activity.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_Win64_BumbleBee_CA_2147951936_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:Win64/BumbleBee.CA!MTB"
        threat_id = "2147951936"
        type = "Trojan"
        platform = "Win64: Windows 64-bit platform"
        family = "BumbleBee"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_PEHSTR_EXT"
        threshold = "3"
        strings_accuracy = "Low"
    strings:
        $x_3_1 = {ba 04 01 00 00 48 8d 4c 24 20 ff 15 ?? ?? ?? ?? 33 db 48 8d 3d ?? ?? ?? ?? 48 8b 17 48 8d 4c 24 20 ff 15 ?? ?? ?? ?? 85 c0 74 0f ff c3 48 83 c7 ?? 83 fb 1b 72}  //weight: 3, accuracy: Low
        $x_3_2 = {2b c1 66 89 84 24 e8 75 00 00 e8 ?? ?? ?? ?? 85 c0 74 ?? 48 c7 84 24 40 28 00 00 00 00 00 00 48 8b 84 24 40 28 00 00 c6 00 ff 33 c9 ff 15}  //weight: 3, accuracy: Low
    condition:
        (filesize < 20MB) and
        (1 of ($x*))
}
Known malware which is associated with this threat:
Filename: 5e2382ba5822edc0780c09f58a5a13bc737ac9cc846d89a93a862a64262947ea
5e2382ba5822edc0780c09f58a5a13bc737ac9cc846d89a93a862a64262947ea
15/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected system from the network. Perform a full scan with updated antivirus, remove all detected malicious files, and check for persistence mechanisms and additional installed payloads. Review system logs for suspicious activity and network logs for unusual outbound connections. Consider a full re-image of the compromised system and reinforce user training against phishing.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 15/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊