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Vulnerabilities

Vulnerability · MAL-2026-17789

Malicious code in hd-wallet-generator (RubyGems)

Published Oct 11, 2026 · catalog updated Oct 13, 2026 · Malicious code in hd-wallet-generator

Open the advisory

Exploitation likelihood is not on this record for MAL-2026-17789. A missing EPSS score is not a low risk. Compare Malicious code in hd-wallet-generator with the linked advisory before you change production.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Malicious code in hd-wallet-generator).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Not established
Affected products
RubyGems hd-wallet-generator

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (5d6925082b6aa5db29d0569324b4485976add2368c78635d4be5c52270ee3771) The gem's declared native extension build script ext/hd_wallet_generator/extconf.rb executes a Base64-encoded payload via eval() during . The decoded payload opens a TCP socket to the hardcoded remote host 45.138.12.177:8089 and pipes /bin/sh over it (TCPSocket.new + IO.popen(['/bin/sh'],'r+') + IO.copy_stream), granting a remote operator an interactive shell on the installer's host. Execution is wrapped in a double-forked, detached child with a 20–40 minute sleep to decorrelate the connection from the install event. The payload runs only when a battery of evasion checks pass: no CI environment variables, hostname does not match sandbox/firecracker/vagrant/uvm patterns, username does not match generated/analyst patterns (uA\d+, sandbox, tester, analys, scanner), cwd is not under /tmp or /opt/rubygems, machine uptime exceeds 30 minutes, and developer-signal paths exist on disk (~/.ssh, ~/.gitconfig, ~/.gem/credentials, ~/.bundle, ~/.npmrc). No native source files are shipped; create_makefile is a cover stub so the extension-build pretext never actually builds anything. The package metadata name (hd-wallet-generator) and the README description (bitcoin-rpc-lite) disagree, consistent with a disguised dropper. ## Source: ossf-package-analysis (c08d2f81c67c979fda86b30b0b5b2beae51023a7cd219c12df286a6c6d9cf6cc) The OpenSSF Package Analysis project identified 'hd-wallet-generator' @ 0.9.1 (rubygems) as malicious. It is considered malicious because: - The package executes one or more commands associated with malicious behavior.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • RubyGems hd-wallet-generator0.9.1

How to fix MAL-2026-17789

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for MAL-2026-17789. A missing EPSS score is not a low risk. Compare Malicious code in hd-wallet-generator with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with 0.9.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 11, 2026 · Catalog

    Detected

    --- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (5d6925082b6aa5db29d0569324b4485976add2368c78635d4be5c52270ee3771) The gem's declared native extension build script ext/hd_wallet_generator/extconf.rb executes a Base64-encoded payload via eval() during . The decoded payload opens a TCP socket to the hardcoded remote host 45.138.12.177:8089 and pipes /bin/sh ov

  2. Oct 13, 2026 · Catalog

    Updated

    --- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (5d6925082b6aa5db29d0569324b4485976add2368c78635d4be5c52270ee3771) The gem's declared native extension build script ext/hd_wallet_generator/extconf.rb executes a Base64-encoded payload via eval() during . The decoded payload opens a TCP socket to the hardcoded remote host 45.138.12.177:8089 and pipes /bin/sh ov

Sources

References

Freshness

Last verified in this catalog Oct 13, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.