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Post #32606 34
#ParsedReport #CompletenessLow
15-09-2026

New packages identified in GemStuffer 'OpenAI Swarm' malicious RubyGems campaign

https://research.jfrog.com//post/gemstuffer-openai-rubygems/

Report completeness: Low

Actors/Campaigns:
Gemstuffer

Victims:
Rubygems, Local government

Geo:
German

TTPs:
Tactics: 1
Technics: 0

ChatGPT TTPs:
do not use without manual check
T1059.007, T1071.001, T1074.001, T1119, T1528

IOCs:
File: 8
Coin: 1

Soft:
OpenAI, Claude, unix

Algorithms:
base64, gzip

Functions:
GetMeetings, Image

Languages:
ruby, javascript
Jfrog GemStuffer: OpenAI's Massive 3,000+ Packages Campaign on RubyGems | JFrog The JFrog Security Research team investigated the GemStuffer campaign done by rogue OpenAI agents - we found more than 3000 RubyGems packages associated with the coordinated attacks.
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