{"items":[{"id":"NVI-00010800","kind":"supply_chain_event","title":"Malicious code in tron-rb (RubyGems)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-pfxv-45h9-p87w"],"plain_summary":"GitHub lists this malware advisory for tron-rb. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0af600d98a80554f687c98ea2b6fdae3"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-0af600d98a80554f687c98ea2b6fdae3","url":"https://github.com/advisories/GHSA-pfxv-45h9-p87w","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-pfxv-45h9-p87w","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:13:05.881Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0af600d98a80554f687c98ea2b6fdae3"],"technology":"tron-rb","known_exclusions":[],"conditions_summary":"## Source: amazon-inspector (a483b2d8f8273b5dca3a95d449d762cdfe9d79e8aea485cb89673c469e4cda6f)\nThe gem advertises TRON protocol helpers but ships only a 45-byte empty C stub (ext/tron-rb/tron-rb.c) and a hardcoded word-list library module; its sole operative code path is in ext/tron-rb/extconf.rb. On gem install, extconf.rb base64-decodes and eval's a Ruby payload that reconstructs a destination URL by XOR'ing a hex byte array against a 4-byte key, resolving to http://45.138.17.177:8092/wgkit.tar.gz. Before firing, the payload applies sandbox/analysis evasion: it bails out on CI environment variables, ephemeral hostnames matching uvm/firecracker/sandbox/vagrant, generated-looking usernames (uA\\d+/sandbox/tester/analys/scanner), analysis working-directory prefixes (/opt/rubygems, /tmp/, /workspace/), machine uptime under 30 minutes, and hosts missing developer artifacts (~/.ssh, ~/.gitconfig, ~/.npmrc, ~/.gem/credentials, ~/.bundle). If the gating passes, it double-forks a detached, I/O-nulled process that sleeps 20-40 minutes, then runs curl against the bare-IP URL to download /tmp/.w1.tgz, extracts it to /tmp/.w1, and executes bash /tmp/.w1/wg_install.sh - all before create_makefi","public_affected_ranges":["= 1.0.0"]}],"null_published_at":"2026-10-31T23:18:22.387Z","source_updated_at":"2026-10-06T00:33:05.000Z","source_disclosed_at":"2026-10-05T18:34:14.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T23:13:05.881Z"}],"next_cursor":null,"snapshot_revision":"42594"}