{"items":[{"id":"NVI-00009718","kind":"supply_chain_event","title":"Malicious code in crypto-tax-export (RubyGems)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7qmm-9mrq-vf4q"],"plain_summary":"GitHub lists this malware advisory for crypto-tax-export. 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-3b294d52a7dc7f89932f4dded5679cf9"],"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-3b294d52a7dc7f89932f4dded5679cf9","url":"https://github.com/advisories/GHSA-7qmm-9mrq-vf4q","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7qmm-9mrq-vf4q","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:01.069Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3b294d52a7dc7f89932f4dded5679cf9"],"technology":"crypto-tax-export","known_exclusions":[],"conditions_summary":"## Source: amazon-inspector (d2481974cbcc361b29455129afea878124dafde18097efca0a87235df57f3bea)\nThe gem's native-extension build script ext/crypto_tax_export/extconf.rb runs during `gem install`. Before executing its payload it performs sandbox/analysis-evasion checks (CI environment variables, ephemeral/generated hostnames and usernames, known analysis paths, system uptime under 30 minutes, and presence of developer-signal files such as ~/.ssh, ~/.gem/credentials, and ~/.gitconfig). When those checks indicate a real developer workstation, it double-forks a detached, stdio-closed daemon that sleeps a randomized 20-40 minutes and then executes `eval(Base64.decode64(...))` on an embedded payload that opens a /bin/sh reverse shell via TCPSocket to the hardcoded bare IP 45.138.12.177:8089 in a reconnect loop. The create_makefile call is a stub targeting an unrelated name (`bitcoin_rpc_lite_native`), the shipped lib/crypto_tax_export.rb contains only trivial VERSION/build_id/healthy? methods with no tax-export functionality, and the README is for a different package (`bitcoin-rpc-lite`), indicating the extension script is the gem's sole purpose and the advertised identity is cover.\n\n---\n","public_affected_ranges":["= 0.9.1"]}],"null_published_at":"2026-10-31T22:13:39.930Z","source_updated_at":"2026-10-11T15:31:14.000Z","source_disclosed_at":"2026-10-11T15:31:13.000Z","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":"2026-10-31T22:07:01.069Z"}],"next_cursor":null,"snapshot_revision":"42594"}