Fake Zoom Installer Delivers Overlord RAT on macOS
A sophisticated macOS campaign has been discovered using a fake Zoom installer to deploy Overlord RAT, an open-source remote access framework. The attack employs a .NET-based downloader disguised as ZoomMeetings, representing an uncommon approach for macOS threats. The multi-stage attack fingerprints the victim's system to deliver platform-specific payloads for macOS ARM64, macOS Intel, or Windows from attacker-controlled infrastructure. The second stage deploys Overlord RAT with extensive capabilities including keylogging, screen capture, audio and webcam access, filesystem manipulation, and remote desktop streaming. The malware communicates with command-and-control servers over encrypted WebSockets and maintains persistence through LaunchAgents. The campaign shares characteristics with previous North Korean operations, including similarities to FlexibleFerret malware and the Contagious Interview campaign.
AI Analysis
Technical Summary
This threat involves a multi-stage malware campaign targeting macOS systems through a fake Zoom installer. The initial stage uses a .NET-based downloader masquerading as ZoomMeetings to identify the system architecture and deliver tailored payloads for macOS ARM64, macOS Intel, or Windows. The second stage installs Overlord RAT, which enables attackers to perform keylogging, screen capture, audio and webcam surveillance, filesystem operations, and remote desktop streaming. The malware maintains persistence using LaunchAgents and communicates with its command-and-control infrastructure over encrypted WebSocket connections. The campaign exhibits similarities to known North Korean malware operations, including FlexibleFerret and the Contagious Interview campaign. Indicators such as malicious domains, IP addresses, URLs, and file hashes are associated with this campaign. There is no vendor advisory or patch information available.
Potential Impact
The Overlord RAT deployed by this campaign allows attackers to gain extensive remote access and control over infected macOS systems, including surveillance capabilities (keylogging, screen, audio, webcam capture), filesystem manipulation, and remote desktop streaming. This level of access can lead to significant data compromise, privacy violations, and potential further network intrusion. The campaign's persistence mechanism via LaunchAgents increases the difficulty of removal. No confirmed active exploitation in the wild has been reported to date.
Mitigation Recommendations
No official patch or vendor advisory is available for this threat. Mitigation should focus on user awareness to avoid downloading software from untrusted sources, especially fake installers masquerading as legitimate applications like Zoom. Endpoint detection and response solutions should be updated to detect indicators of compromise such as the provided hashes, domains, and IP addresses. Monitoring for suspicious LaunchAgent entries and unusual WebSocket communications may help identify infections. As this is a malware campaign rather than a software vulnerability, standard patching does not apply.
Indicators of Compromise
- ip: 179.61.227.46
- domain: hub.zoom.com.lv
- domain: hub.zoom.com.kg
- hash: 2c0bb97632bb9b90ee97be2ac350a557b08d84a7dad1f3ef63ffd83be1ab1f00
- hash: 527f730d4ed6e9e23a971081f9e06691ac6e980bd06bb0b5f1091051d4631c5d
- hash: 5334c468f0ffd5899a949ac3e0bc4665f80c658cb46e1a972df4e4ba0bb905f8
- hash: 7878031f2bd907e7300133b3e8ce640f3cdcba56686eaca3539d4c22773bc233
- hash: 7a2318127cabf28552a8aeed14a8445c8f36fbda5e57d8b122cf6f1c6b51a522
- hash: 9d8948e64f75c203e28f90f5bd7678dde6bd351c7507eecdaaeab2fbe4ec43bb
- hash: b5f1a21dcd315676a4a9217a40ef830c159121528114c6436e671c2fa5455681
- hash: d4cf150d6effeea315f136cdf448e32f4a8daac9e95f46def6a31ba18787dae3
- url: http://hub.zoom.com.kg:5173
- url: https://cdn.zoom.com.kg/bin/zoomMacArm&ts=
- url: https://cdn.zoom.com.kg/bin/zoomMacX64&ts=
- url: https://cdn.zoom.com.kg/bin/zoomX64&ts=
- domain: cdn.zoom.com.kg
- domain: dash.zoom.com.kg
Fake Zoom Installer Delivers Overlord RAT on macOS
Description
A sophisticated macOS campaign has been discovered using a fake Zoom installer to deploy Overlord RAT, an open-source remote access framework. The attack employs a .NET-based downloader disguised as ZoomMeetings, representing an uncommon approach for macOS threats. The multi-stage attack fingerprints the victim's system to deliver platform-specific payloads for macOS ARM64, macOS Intel, or Windows from attacker-controlled infrastructure. The second stage deploys Overlord RAT with extensive capabilities including keylogging, screen capture, audio and webcam access, filesystem manipulation, and remote desktop streaming. The malware communicates with command-and-control servers over encrypted WebSockets and maintains persistence through LaunchAgents. The campaign shares characteristics with previous North Korean operations, including similarities to FlexibleFerret malware and the Contagious Interview campaign.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This threat involves a multi-stage malware campaign targeting macOS systems through a fake Zoom installer. The initial stage uses a .NET-based downloader masquerading as ZoomMeetings to identify the system architecture and deliver tailored payloads for macOS ARM64, macOS Intel, or Windows. The second stage installs Overlord RAT, which enables attackers to perform keylogging, screen capture, audio and webcam surveillance, filesystem operations, and remote desktop streaming. The malware maintains persistence using LaunchAgents and communicates with its command-and-control infrastructure over encrypted WebSocket connections. The campaign exhibits similarities to known North Korean malware operations, including FlexibleFerret and the Contagious Interview campaign. Indicators such as malicious domains, IP addresses, URLs, and file hashes are associated with this campaign. There is no vendor advisory or patch information available.
Potential Impact
The Overlord RAT deployed by this campaign allows attackers to gain extensive remote access and control over infected macOS systems, including surveillance capabilities (keylogging, screen, audio, webcam capture), filesystem manipulation, and remote desktop streaming. This level of access can lead to significant data compromise, privacy violations, and potential further network intrusion. The campaign's persistence mechanism via LaunchAgents increases the difficulty of removal. No confirmed active exploitation in the wild has been reported to date.
Defensive Guidance
No official patch or vendor advisory is available for this threat. Mitigation should focus on user awareness to avoid downloading software from untrusted sources, especially fake installers masquerading as legitimate applications like Zoom. Endpoint detection and response solutions should be updated to detect indicators of compromise such as the provided hashes, domains, and IP addresses. Monitoring for suspicious LaunchAgent entries and unusual WebSocket communications may help identify infections. As this is a malware campaign rather than a software vulnerability, standard patching does not apply.
Technical Details
- Author
- AlienVault
- Tlp
- white
- References
- ["https://www.jamf.com/blog/fake-zoom-installer-delivers-overlord-rat-macos/"]
- Adversary
- null
- Pulse Id
- 6a758613edf8a990accc88ee
- Threat Score
- null
Indicators of Compromise
Ip
| Value | Description | Copy |
|---|---|---|
ip179.61.227.46 | — |
Domain
| Value | Description | Copy |
|---|---|---|
domainhub.zoom.com.lv | — | |
domainhub.zoom.com.kg | — | |
domaincdn.zoom.com.kg | — | |
domaindash.zoom.com.kg | — |
Hash
| Value | Description | Copy |
|---|---|---|
hash2c0bb97632bb9b90ee97be2ac350a557b08d84a7dad1f3ef63ffd83be1ab1f00 | — | |
hash527f730d4ed6e9e23a971081f9e06691ac6e980bd06bb0b5f1091051d4631c5d | — | |
hash5334c468f0ffd5899a949ac3e0bc4665f80c658cb46e1a972df4e4ba0bb905f8 | — | |
hash7878031f2bd907e7300133b3e8ce640f3cdcba56686eaca3539d4c22773bc233 | — | |
hash7a2318127cabf28552a8aeed14a8445c8f36fbda5e57d8b122cf6f1c6b51a522 | — | |
hash9d8948e64f75c203e28f90f5bd7678dde6bd351c7507eecdaaeab2fbe4ec43bb | — | |
hashb5f1a21dcd315676a4a9217a40ef830c159121528114c6436e671c2fa5455681 | — | |
hashd4cf150d6effeea315f136cdf448e32f4a8daac9e95f46def6a31ba18787dae3 | — |
Url
| Value | Description | Copy |
|---|---|---|
urlhttp://hub.zoom.com.kg:5173 | — | |
urlhttps://cdn.zoom.com.kg/bin/zoomMacArm&ts= | — | |
urlhttps://cdn.zoom.com.kg/bin/zoomMacX64&ts= | — | |
urlhttps://cdn.zoom.com.kg/bin/zoomX64&ts= | — |
Threat ID: 6a75af5dbf8831d539217e0e
Added to database: 08/07/2026, 10:11:41 UTC
Last enriched: 08/07/2026, 10:28:51 UTC
Last updated: 08/07/2026, 14:57:26 UTC
Views: 8
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