Ggpass

Overview

TrojanSpy:Win32/Ggpass (also related to broader 'Password Stealer' heuristics) is a specialized information-stealing trojan designed explicitly to harvest credentials, session tokens, and autofill data from infected endpoints, with a particular focus on extracting saved passwords from popular web browsers (Chrome, Firefox, Edge, etc.) and email clients.

Understanding Ggpass
To an infected user, Ggpass operates entirely in the background, leaving no visible trace of its activity. The first sign of infection is usually a compromised online account (e.g., unauthorized access to an email, social media, or banking portal). For a security analyst, Ggpass represents an immediate credential compromise event. It does not wait for the user to type their password (like a keylogger); instead, it actively queries the local databases where browsers securely store passwords.

Execution and Theft Mechanics
Ggpass is typically distributed via phishing emails or bundled with pirated software (`T1204.002`). Upon execution, it does not usually bother with complex persistence mechanisms, as its goal is a rapid 'smash and grab'. It immediately targets the specific file paths where browsers store credentials (e.g., `%LocalAppData%\Google\Chrome\User Data\Default\Login Data`) (`T1555.003`). Because modern browsers encrypt these SQLite databases, Ggpass utilizes native Windows APIs (like `CryptUnprotectData`) to decrypt the passwords locally on the victim's machine, using the victim's own Windows session context (`T1528`). It then packages the stolen credentials, cookies, and system information into a ZIP file and exfiltrates it to a C2 server via HTTP or SMTP (`T1041`).

Indicators of Compromise & Impact
The primary impact is the massive compromise of user credentials, which can quickly lead to lateral movement within an enterprise or personal identity theft. Incident responders should monitor EDR for suspicious processes (especially those running from `%Temp%`) accessing browser user data directories (`Login Data`, `Cookies`) or calling `Crypt32.dll` to utilize DPAPI functions. Network logs will show a sudden, short burst of outbound traffic (often an HTTP POST or FTP upload) immediately after execution.

MITRE ATT&CK Techniques

Observed techniques used by this family, mapped to the MITRE ATT&CK framework:

Generated Detections (Boilerplate)

These YARA and Sigma rules are auto-generated based on the family name and aliases. They must be heavily tuned before deployment in a production environment.

YARA Rule

rule MALWARE_WIN_GGPASS {
    meta:
        description = "Detects Ggpass (trojan)"
        author = "SystemHelpdesk Boilerplate Generator"
        date = "2026-07-06"
    strings:
        $s1 = "ggpass" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

Sigma Rule

title: Suspicious Ggpass Activity
id: 4a5d3ef6e608b182b0c7678f53895db6
status: experimental
description: Detects generic indicators of the ggpass malware family.
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith:
            - '\cmd.exe'
            - '\powershell.exe'
        CommandLine|contains:
            - "*ggpass*"
    condition: selection
level: medium

Containment & Response Steps

Ordered checklist for responders. Adapt to your environment and engage professional support for active incidents.

1. Assume all passwords saved in the user's web browsers, as well as active session cookies, have been compromised.
2. Enforce immediate, enterprise-wide password resets for the affected user, prioritizing email, VPN, and financial accounts.
3. Instruct the user to immediately log out of all active web sessions to invalidate the stolen session cookies.
4. Use EDR to track the execution chain and locate the dropped Ggpass executable (usually in a temporary directory) for removal.

What to Avoid

Common mistakes during response to this family that can destroy evidence, spread the infection, or worsen recovery.

1. Do not assume multi-factor authentication (MFA) will fully protect the user; Ggpass steals active session cookies, which can often bypass MFA requirements.
2. Avoid delaying password resets; stealers exfiltrate data within seconds of execution.

References & External Analysis

• Search "ggpass" on VirusTotal (External Analysis)

Frequently Asked Questions

Related Families (Category: trojan)

Explore other malware families in the same category:

• Fakeplayer
• Zdowbot
• Gify
• Jacksbot
• Xpaj

Machine-readable

Get this profile as JSON: https://jordanricky1604-ship-it.github.io/malware-families-catalog/api/ggpass.json

Ecosystem & Interactive Environments

This profile is part of the Malware Families Catalog, a public dataset of 2,899 malware families. The catalog is also published across our ecosystem: Hugging Face, Kaggle, Zenodo, Replit, StackBlitz, CodeSandbox, and CodePen.