supply chain event / NVI-00009961 / Revision 1
Malicious code in req-throttle-mini (RubyGems)
GitHub lists this malware advisory for req-throttle-mini, req-throttle-mini, req-throttle-mini. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
req-throttle-mini
source listed= 1.0.0
## Source: amazon-inspector (91bd1a5cb0c3bacb52c303b598c520dff6f40695affdb1643dd502cf3981d797) The gem's native-extension script extconf.rb base64-decodes an embedded Ruby payload, writes it to a randomized file under the system temp directory, and spawns a detached `ruby` process on it before invoking mkmf's `create_makefile`. The decoded payload opens a TCP connection to the hardcoded bare IP 45.138.12.177 on port 8089 and bridges the socket bidirectionally to `/bin/sh`, giving the remote endpoint interactive command execution on the installing host. The payload loops with a 30-second sleep to re-dial on disconnect, providing persistent reconnection. The C2 destination is concealed as a base64 literal rather than appearing in plaintext, and the behavior is unrelated to any native build step. --- Credit: OpenSSF (source)
req-throttle-mini
source listed> 0
## Source: amazon-inspector (91bd1a5cb0c3bacb52c303b598c520dff6f40695affdb1643dd502cf3981d797) The gem's native-extension script extconf.rb base64-decodes an embedded Ruby payload, writes it to a randomized file under the system temp directory, and spawns a detached `ruby` process on it before invoking mkmf's `create_makefile`. The decoded payload opens a TCP connection to the hardcoded bare IP 45.138.12.177 on port 8089 and bridges the socket bidirectionally to `/bin/sh`, giving the remote endpoint interactive command execution on the installing host. The payload loops with a 30-second sleep to re-dial on disconnect, providing persistent reconnection. The C2 destination is concealed as a base64 literal rather than appearing in plaintext, and the behavior is unrelated to any native build step. --- Credit: OpenSSF (source)
req-throttle-mini
source listed= 1.0.1
## Source: amazon-inspector (91bd1a5cb0c3bacb52c303b598c520dff6f40695affdb1643dd502cf3981d797) The gem's native-extension script extconf.rb base64-decodes an embedded Ruby payload, writes it to a randomized file under the system temp directory, and spawns a detached `ruby` process on it before invoking mkmf's `create_makefile`. The decoded payload opens a TCP connection to the hardcoded bare IP 45.138.12.177 on port 8089 and bridges the socket bidirectionally to `/bin/sh`, giving the remote endpoint interactive command execution on the installing host. The payload loops with a 30-second sleep to re-dial on disconnect, providing persistent reconnection. The C2 destination is concealed as a base64 literal rather than appearing in plaintext, and the behavior is unrelated to any native build step. --- Credit: OpenSSF (source)
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.
- GHSA-mvgr-wfjm-xr5v ↗
GitHub Advisory Database · vendor advisory
Observed . GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.
Public revision history
Only published revisions appear here. Routine fetches do not create a material-change event.
- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.