Malicious GTFire Phishing Credential Exfiltration to All-in-1.php Backend (via proxy)

ATT&CK techniques

Initial Access → C2

Recon
Resource Dev
Initial Access
- T1566.002Spearphishing Link
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1132.001Standard Encoding
Exfiltration
Impact

What it detects

This rule detects credential-harvesting requests to the GTFire phishing backend script All-in-1.php carrying the user and pass parameters used to capture victim logins, as documented by Group-IB. Adversaries transmit stolen credentials to this fixed backend URI over HTTP, so requests matching the path and parameter structure indicate active credential theft.

Reporting behind it

Related detections9 linkedT1566.002 — drag to rearrange

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Malicious GTFire Phishing Credential Exfiltration to All-in-1.php Backend (via proxy)

Pivot detection · T1566.002 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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