user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat TrojanDownloader:Win32/Eterock.A
TrojanDownloader:Win32/Eterock.A - Windows Defender threat signature analysis

TrojanDownloader:Win32/Eterock.A - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: TrojanDownloader:Win32/Eterock.A
Classification:
Type:TrojanDownloader
Platform:Win32
Family:Eterock
Detection Type:Concrete
Known malware family with identified signatures
Variant:A
Specific signature variant within the malware family
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Trojan Downloader - Downloads additional malware for 32-bit Windows platform, family Eterock

Summary:

This is a concrete detection of TrojanDownloader:Win32/Eterock.A, a severe trojan downloader specifically linked to the EternalRocks worm. This threat is designed to exploit vulnerabilities (like those related to EternalBlue) to spread, establish persistence, and download and execute further malicious payloads.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - .shadowbrokers.zip (PEHSTR_EXT)
 - EternalRocks.exe (PEHSTR_EXT)
YARA Rule:
rule TrojanDownloader_Win32_Eterock_A_2147721503_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "TrojanDownloader:Win32/Eterock.A"
        threat_id = "2147721503"
        type = "TrojanDownloader"
        platform = "Win32: Windows 32-bit platform"
        family = "Eterock"
        severity = "Critical"
        signature_type = "SIGNATURE_TYPE_PEHSTR_EXT"
        threshold = "4"
        strings_accuracy = "High"
    strings:
        $x_1_1 = "\\svchost.exe" wide //weight: 1
        $x_1_2 = "\\TaskScheduler" wide //weight: 1
        $x_1_3 = "Finished MkDir Temp" wide //weight: 1
        $x_1_4 = "\\required.glo" wide //weight: 1
        $x_1_5 = "\\dotnetfx.exe /q:a /c:" wide //weight: 1
    condition:
        (filesize < 20MB) and
        (4 of ($x*))
}
Known malware which is associated with this threat:
Filename: mb_4004258f27364397b2544bb45162f029
2e15d04e67503967eb3a47a78aa14531c7c288a84245c605e096b4e5fd5c2073
09/01/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected system from the network. Perform a full system scan with updated antivirus software (e.g., Windows Defender) to remove all detected threats. Ensure all operating systems and applications are fully patched, particularly against known SMB vulnerabilities (e.g., MS17-010), to prevent reinfection and propagation.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 09/01/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
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