Malicious code in ishumdz-bail (npm)
The ishumdz-bail npm package is part of a large family of near-identical forks of the Baileys WhatsApp Web library that inject malicious code to silently subscribe the victim's WhatsApp account to attacker-controlled channels. This is done by issuing an authenticated FOLLOW query using the victim's own WhatsApp session. The target channels are obfuscated or dynamically fetched to evade detection. The malicious code does not exfiltrate credentials, establish persistence, or execute arbitrary remote code.
AI Analysis
Technical Summary
The ishumdz-bail package (versions 1.0.1 through 1.0.16) contains injected malicious code that hooks into the WhatsApp socket connection. Upon connection, it issues an authenticated 'w:mex' FOLLOW query to attacker-chosen WhatsApp Channel/Newsletter JIDs, subscribing the victim's account without their consent. The target JIDs are obfuscated or dynamically retrieved from remote sources, allowing attackers to change targets post-installation. This behavior abuses the installer's authenticated WhatsApp session to increase subscribers for attacker-controlled channels. No credential theft, persistence, or remote code execution is involved.
Potential Impact
Victims unknowingly subscribe their WhatsApp accounts to attacker-controlled channels, potentially exposing them to unwanted content or spam. The attack leverages the victim's authenticated session but does not compromise credentials or enable further remote control. The impact is limited to unauthorized channel subscriptions.
Mitigation Recommendations
No official patch or remediation is currently documented for this malicious package. Users should avoid installing or using the affected ishumdz-bail package versions. Review dependencies for this package and remove or replace it with a trusted alternative. Monitor for suspicious WhatsApp channel subscriptions and revoke access where possible.
Malicious code in ishumdz-bail (npm)
Description
The ishumdz-bail npm package is part of a large family of near-identical forks of the Baileys WhatsApp Web library that inject malicious code to silently subscribe the victim's WhatsApp account to attacker-controlled channels. This is done by issuing an authenticated FOLLOW query using the victim's own WhatsApp session. The target channels are obfuscated or dynamically fetched to evade detection. The malicious code does not exfiltrate credentials, establish persistence, or execute arbitrary remote code.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The ishumdz-bail package (versions 1.0.1 through 1.0.16) contains injected malicious code that hooks into the WhatsApp socket connection. Upon connection, it issues an authenticated 'w:mex' FOLLOW query to attacker-chosen WhatsApp Channel/Newsletter JIDs, subscribing the victim's account without their consent. The target JIDs are obfuscated or dynamically retrieved from remote sources, allowing attackers to change targets post-installation. This behavior abuses the installer's authenticated WhatsApp session to increase subscribers for attacker-controlled channels. No credential theft, persistence, or remote code execution is involved.
Potential Impact
Victims unknowingly subscribe their WhatsApp accounts to attacker-controlled channels, potentially exposing them to unwanted content or spam. The attack leverages the victim's authenticated session but does not compromise credentials or enable further remote control. The impact is limited to unauthorized channel subscriptions.
Mitigation Recommendations
No official patch or remediation is currently documented for this malicious package. Users should avoid installing or using the affected ishumdz-bail package versions. Review dependencies for this package and remove or replace it with a trusted alternative. Monitor for suspicious WhatsApp channel subscriptions and revoke access where possible.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-17393
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6abd30852a4e24523d340125
Added to database: 09/30/2026, 15:53:41 UTC
Last enriched: 09/30/2026, 16:02:08 UTC
Last updated: 09/30/2026, 22:41:30 UTC
Views: 2
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