user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Trojan:MSIL/AgentTesla.NCR!MTB
Trojan:MSIL/AgentTesla.NCR!MTB - Windows Defender threat signature analysis

Trojan:MSIL/AgentTesla.NCR!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:MSIL/AgentTesla.NCR!MTB
Classification:
Type:Trojan
Platform:MSIL
Family:AgentTesla
Detection Type:Concrete
Known malware family with identified signatures
Variant:NCR
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 .NET (Microsoft Intermediate Language) platform, family AgentTesla

Summary:

AgentTesla is a well-known information-stealing trojan designed to steal sensitive data from infected systems. It targets credentials stored in web browsers, email clients, and other applications, often using keylogging to capture user input. The stolen information is then exfiltrated to a remote attacker.

Severity:
Medium
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Trojan_MSIL_AgentTesla_NCR_2147935616_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:MSIL/AgentTesla.NCR!MTB"
        threat_id = "2147935616"
        type = "Trojan"
        platform = "MSIL: .NET intermediate language scripts"
        family = "AgentTesla"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_PEHSTR_EXT"
        threshold = "4"
        strings_accuracy = "High"
    strings:
        $x_4_1 = {08 09 a3 05 00 00 1b 13 04 11 04 16 06 07 11 04 8e 69 28 1b 00 00 0a 07 11 04 8e 69 58 0b 09 17 58 0d 09 08 8e 69 32 d8}  //weight: 4, accuracy: High
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: 061-522-527-Xpdf.exe
ca271b6e009c2c13b8abf07bc7ded6d11c020d328eec50fb20685ea45ba11bef
13/11/2025
→VirusTotal↓Download Sample
Filename: SOA BEFORE OCT USD16499.00.exe
ba3fce213c422b7888f22517be05396e8c68fd8a938ca4781c63b5e758b541f1
11/11/2025
→VirusTotal↓Download Sample
aaed54bbc25043e6449b6cc09819acb0e6d013e5e65cf39ccaa0e12591bc5de2
07/11/2025
→VirusTotal↓Download Sample
Remediation Steps:
Isolate the affected device from the network immediately. Perform a full antivirus scan to ensure all malicious components are removed. Reset passwords for all accounts accessed from this device, as they are likely compromised.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 08/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊