Revealerkeylogger
Table of Contents
Overview
Executive Summary
Revealer Keylogger is a commercially available monitoring application (often marketed as "employee monitoring" or "parental control" software). However, due to its powerful, invisible surveillance capabilities, it is highly categorized as "Riskware" or a "HackTool" by enterprise security solutions. Threat actors frequently weaponize this legitimate software, deploying it silently on compromised hosts to act as an Info Stealer, capturing sensitive credentials and proprietary data without triggering standard malware heuristics.Infection Vector and Technical Capabilities
Revealer Keylogger must be intentionally installed. In a malicious scenario, it is either installed by a malicious insider with physical access or deployed remotely by an attacker who has already achieved administrative privileges on the endpoint. Once deployed, it utilizes deeply embedded monitoring techniques:- API Hooking and Surveillance: The application deeply hooks into the Windows API to record every keystroke pressed by the user, regardless of the application in focus. It also takes periodic, hidden screenshots of the user's desktop.
- Extreme Stealth Mode: The defining feature of Revealer Keylogger is its "stealth mode." When activated, it completely hides its processes from the standard Windows Task Manager, removes its entries from the Windows Startup registry keys, and operates invisibly in the background.
- Automated Data Exfiltration: The software can be configured to automatically compile the harvested keystroke logs and screenshots and exfiltrate them silently via email (SMTP), FTP upload, or over a local network share to a designated attacker-controlled location.
Threat Assessment
The unauthorized presence of Revealer Keylogger on a corporate endpoint is a critical security breach. It guarantees the compromise of all passwords typed on that machine, leading to unauthorized access to enterprise systems, potential privilege escalation, and severe data leakage.Incident Response and Remediation
- Contextual Verification: First, determine if the installation was authorized (e.g., a sanctioned insider threat investigation by HR/Legal). This is rare, as enterprise monitoring is usually handled by centralized DLP solutions, not standalone keyloggers.
- Assume Total Credential Compromise: If unauthorized, immediately assume all user credentials, VPN tokens, and sensitive data processed on that machine have been compromised. Initiate a mandatory, global password reset for the affected user(s).
- Complete System Wipe: Because commercial keyloggers are designed to deeply hide themselves and resist removal, attempting to manually uninstall the software is insufficient. A complete bare-metal wipe and re-image of the compromised endpoint is required.
Known aliases
Threat reports may refer to this family under multiple names:
MITRE ATT&CK Techniques
Observed techniques used by this family, mapped to our technical analysis hubs and the official MITRE ATT&CK framework:
| Technique | Name | Tactic | Official Spec |
|---|---|---|---|
T1056.001 | Keylogging | Credential Access | ATT&CK ↗ |
T1115 | Clipboard Data | Collection | ATT&CK ↗ |
T1056.002 | Input Capture: GUI Input Capture (Monitoring active window titles for targeted banks) | Collection | ATT&CK ↗ |
Tactical Mitigations
Based on the techniques used by this family, consider the following defensive strategies:
- T1056.001: Implement Endpoint Detection and Response (EDR) to monitor for suspicious API calls related to keystroke interception. Enforce Multi-Factor Authentication (MFA) to render stolen passwords useless.
- T1056.002: Monitor for unauthorized keylogging, screen capturing, or web browser API hooking. Deploy EDR to detect API hooking.
MITRE D3FEND™ Defensive Countermeasures
Defensive techniques mapped to counter the offensive tradecraft observed in this family (via the MITRE D3FEND matrix):
| D3FEND ID | Countermeasure Name | Tactic | Countered ATT&CK | Defensive Guidance |
|---|---|---|---|---|
D3-MFA | Multi-factor Authentication | Harden | T1056.001 | Enforce FIDO2 / WebAuthn physical tokens to render keystroke-intercepted passwords useless. |
D3-AHC | API Hook Detection | Detect | T1056.002 | Deploy kernel and userland EDR drivers to monitor SetWindowsHookEx and low-level keyboard hooks. |
D3-CAC | Clipboard Access Control | Isolate | T1115 | Isolate virtual desktop infrastructure (VDI) clipboards and alert on rapid background clipboard querying by non-foreground processes. |
Tiered Detection Rules (Cisco CAIRN Model)
Modern threat detection requires multi-layered rule engineering. We classify detections into three operational tiers based on signal fidelity:
Tier 1 Primitive Artifact Rule (Fast Triage)
Matches raw strings and file markers. Vulnerable to binary repacking and simple obfuscation.
rule MALWARE_WIN_REVEALERKEYLOGGER_T1_ARTIFACT {
meta:
description = "Tier 1 Primitive Artifact: Raw string matches for Revealerkeylogger"
tier = "T1 - Primitive Artifact"
confidence = "Low-Medium (Fast Triage)"
author = "SystemHelpdesk Threat Research Desk"
date = "2026-10-14"
strings:
$s1 = "revealerkeylogger" ascii wide nocase
$s2 = "riskware.revealerkeylogger" ascii wide nocase
$s3 = "hacktool.keylogger" ascii wide nocase
$s4 = "spyware.revealer" ascii wide nocase
condition:
uint16(0) == 0x5a4d and any of them
}Tier 2 Behavioral Context Rule (Process Chains & Sigma)
Tracks parent-child process anomalies and suspicious scripting telemetry. Resilient against file renames.
title: SystemHelpDesk Detection - Revealerkeylogger (Advanced Threat) Execution &
Triage
id: 9e4b2dbf-fc20-52c9-b682-aa2f6d0172b5
status: production
description: Detects execution, defense evasion, and persistence behaviors associated
with the Revealerkeylogger malware family. Detects proxy execution, reflective DLL
loading, and remote command injection associated with modular enterprise backdoors.
references:
- https://malware-families-catalog.systemhelpdesk.com/families/revealerkeylogger
- https://malware-families-catalog.systemhelpdesk.com/defensive/backdoor-rat-protection
- https://malware-families-catalog.systemhelpdesk.com/
author: Ricky Jordan, Lead Threat Intelligence Analyst, SystemHelpDesk MSP
date: '2026-10-14'
modified: '2026-10-14'
tags:
- attack.advanced-threat
- author.ricky-jordan
- source.systemhelpdesk-mfc
- attack.t1056_001
- attack.t1115
- attack.t1056_002
logsource:
category: process_creation
product: windows
detection:
selection_process:
Image|endswith:
- \powershell.exe
- \cmd.exe
- \rundll32.exe
- \regsvr32.exe
CommandLine|contains:
- DownloadString
- IEX(
- '/s /n /u /i:'
- sc create
- start-process
condition: selection_process
falsepositives:
- Legitimate enterprise administrative scripts during approved change windows
- Authorized IT software deployment utilities and backup management agents
level: highTier 3 Attribution Fingerprint Rule (High Fidelity)
Deep signature matching distinctive operational fingerprints and payload characteristics.
rule MALWARE_WIN_REVEALERKEYLOGGER_T3_ATTRIBUTION {
meta:
description = "Tier 3 Attribution Fingerprint: Heuristic detection for Revealerkeylogger tradecraft"
tier = "T3 - Attribution Fingerprint"
confidence = "High (Confirmed Family Signature)"
author = "SystemHelpdesk Threat Research Desk"
date = "2026-10-14"
strings:
// Core family identifier & heuristic payload signatures
$attrib_str = "revealerkeylogger" ascii wide nocase
$pe_magic = "MZ" ascii
$net_marker = "http" ascii nocase
condition:
uint16(0) == 0x5a4d and ($attrib_str and $net_marker) and filesize < 15MB
}Containment & Response Steps
Ordered checklist for responders. Adapt to your environment and engage professional support for active incidents.
- Enforce forensic network isolation on all suspected endpoints while maintaining an out-of-band telemetry conduit to capture live Revealerkeylogger adversary activity.
- Perform full memory dumps across identified staging nodes to extract memory-only implants, kernel rootkit hooks, and decrypted Revealerkeylogger C2 infrastructure IP/domain lists.
- Review Active Directory domain controller authentication logs for anomalous Kerberos ticket requests (Pass-the-Ticket, Golden Ticket) and unauthorized DCSync operations associated with Revealerkeylogger.
- Block all confirmed C2 domains, dynamic DNS endpoints, and proxy IP addresses across perimeter firewalls, proxies, and DNS security gateways.
- Conduct an enterprise-wide sweep across surrounding subnets for secondary webshells, WMI event subscriptions, or remote execution tooling left behind by Revealerkeylogger operators.
What to Avoid
Common mistakes during response to this family that can destroy evidence, spread the infection, or worsen recovery.
- Do not assume the incident is resolved simply because an antivirus tool removed the initial Revealerkeylogger dropper; always verify that secondary payloads and persistence hooks have been eradicated.
- Avoid logging in with Domain Admin or privileged credentials on a machine suspected of running Revealerkeylogger until memory triage is complete.
- Do not delay host isolation; automated lateral movement and credential dumping can occur within minutes of initial execution.
References & External Analysis
- Search "revealerkeylogger" on VirusTotal (External Analysis)
- Search "revealerkeylogger" on Any.Run (Sandbox Sandbox)
- Search "revealerkeylogger" on MalwareBazaar (Malware Samples)
Frequently Asked Questions
What is Revealerkeylogger and what threat category does it belong to?
Revealerkeylogger is classified as a Advanced Threat. Documented across security telemetry, it is engineered to execute unauthorized operations, establish persistent footholds on target endpoints, and facilitate malicious campaigns targeting enterprise and individual environments.
How does Revealerkeylogger establish persistence and evade defensive controls?
Revealerkeylogger typically establishes persistence through registry run keys, scheduled tasks, or service installations, while evading signature-based antivirus solutions through code obfuscation, memory injection, or anti-analysis sandbox checks.
What are the essential incident response steps for mitigating a Revealerkeylogger compromise?
Security teams responding to Revealerkeylogger should immediately isolate affected endpoints from the network, perform memory triage to capture volatile forensic artifacts, audit registry and startup persistence mechanisms, revoke exposed user credentials, and restore systems from verified, clean backups.
What lateral movement and credential access tactics does Riskware.RevealerKeylogger leverage in enterprise intrusions?
Riskware.RevealerKeylogger frequently utilizes privileged account harvesting techniques such as LSASS memory dumping, Kerberoasting, and token impersonation to escalate privileges. Once administrative credentials are acquired, it pivots across the victim network utilizing living-off-the-land binaries (LOLBins) such as WMI, PowerShell remoting, and PsExec, or abuses remote desktop protocols (RDP) to reach critical internal repositories and domain controllers.
How does Riskware.RevealerKeylogger maintain covert communications and evade perimeter network monitoring?
Riskware.RevealerKeylogger often relies on multi-stage command and control (C2) architectures utilizing encrypted protocols over standard web ports (HTTPS/443 or DNS tunneling) to blend in with legitimate enterprise network traffic. Many variants incorporate proxy networks, domain fronting, or cloud services (such as Microsoft Graph API, Google Drive, or Telegram) to masquerade C2 channels, bypassing traditional signature-based egress filtering.
How do I remove the Revealerkeylogger Advanced_Threat from Windows?
Manual removal of Revealerkeylogger is highly discouraged as it may leave persistence mechanisms intact. We recommend disconnecting the device from the internet and utilizing a professional incident response service or enterprise-grade EDR software to conduct a full forensic sweep.
Is Revealerkeylogger a virus or a Advanced_Threat?
Revealerkeylogger is classified as a Advanced_Threat. Unlike traditional viruses that infect files, modern malware like Revealerkeylogger typically operates as a standalone payload designed to compromise systems, steal data, or deploy secondary stage implants.
What are the main symptoms of a Revealerkeylogger infection?
Symptoms of Revealerkeylogger can include unexpected system slowness, unauthorized outbound network traffic to unknown IP addresses, disabled security software, and suspicious background processes running from AppData or Temp directories.
Protect Your Network Against Advanced_Threats
Want to prevent Revealerkeylogger and similar threats from compromising your organization? Read our comprehensive defensive guide: Think You've Been Hacked? What To Do First.
📣 Threat Intel Correction or Update?
Notice an outdated IOC, unlisted alias, or disputed attribution? Threat researchers are invited to propose an update on GitHub or contact the SystemHelpDesk research desk. All community revisions are credited in our public CHANGELOG.
Machine-readable
Get this profile as JSON: https://malware-families-catalog.systemhelpdesk.com/api/revealerkeylogger.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.