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

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

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

This detection indicates AgentTesla, a notorious .NET-based information stealer and remote access trojan. It is designed to capture keystrokes, log screen activity, steal credentials from web browsers and email clients, and exfiltrate sensitive system information, posing a significant data breach risk.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - screenLogger (PEHSTR_EXT)
YARA Rule:
rule Trojan_MSIL_AgentTesla_CCHS_2147902336_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Trojan:MSIL/AgentTesla.CCHS!MTB"
        threat_id = "2147902336"
        type = "Trojan"
        platform = "MSIL: .NET intermediate language scripts"
        family = "AgentTesla"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_PEHSTR_EXT"
        threshold = "15"
        strings_accuracy = "High"
    strings:
        $x_1_1 = "screenLogger" ascii //weight: 1
        $x_1_2 = "keyLogger" ascii //weight: 1
        $x_1_3 = "OSFullName" wide //weight: 1
        $x_1_4 = "CPU:" wide //weight: 1
        $x_1_5 = "User Name" wide //weight: 1
        $x_1_6 = "SbieDll.dll" wide //weight: 1
        $x_1_7 = "Opera Mail\\Opera Mail" wide //weight: 1
        $x_1_8 = "Software\\TightVNC" wide //weight: 1
        $x_1_9 = "DownloadManager\\Passwords" wide //weight: 1
        $x_1_10 = "hostname|encryptedPassword|encryptedUsername" wide //weight: 1
        $x_1_11 = "Google\\Chrome\\User Data" wide //weight: 1
        $x_1_12 = "Chromium\\User Data" wide //weight: 1
        $x_1_13 = "Mozilla\\icecat" wide //weight: 1
        $x_1_14 = "Elements Browser\\User Data" wide //weight: 1
        $x_1_15 = "Microsoft\\Edge\\User Data" wide //weight: 1
    condition:
        (filesize < 20MB) and
        (all of ($x*))
}
Known malware which is associated with this threat:
Filename: f45b853c-c9d3-495e-9acb-d41a4a90029f.exe
8c99f17e2927d4a33c0bebea8465c3bac494a4796fed56cb172cbd8920b15a8a
28/09/2026
→VirusTotal↓Download Sample
Filename: 2e76a50f38c136fba5f74d91e141869bf8cc926af5d416c3bf47cad884110f8d.exe
2e76a50f38c136fba5f74d91e141869bf8cc926af5d416c3bf47cad884110f8d
13/08/2026
→VirusTotal↓Download Sample
Filename: CUSTOMER STATEMENT of ACCOUNT.exe
4d08acae8180270235f519d9ec24e27e94c32f5c0370edd122bc6dc1f33a8240
05/08/2026
→VirusTotal↓Download Sample
Filename: 97b6c601828796cbb4b7f7d7dba3789a792816fdca70201e3965dc57694882a4
97b6c601828796cbb4b7f7d7dba3789a792816fdca70201e3965dc57694882a4
14/07/2026
→VirusTotal↓Download Sample
Filename: 6e00f52072b251d58ce01eecd95aa6022db7ba161e7d68d2c224091392f6c832
6e00f52072b251d58ce01eecd95aa6022db7ba161e7d68d2c224091392f6c832
14/07/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected system, perform a full malware scan, force a password reset for all potentially compromised credentials, and investigate for lateral movement or data exfiltration. Rebuild the system from a trusted backup.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 24/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
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