supply chain event / NVI-00009789 / Revision 1
Malicious code in wallet-crypto-utils (RubyGems)
GitHub lists this malware advisory for wallet-crypto-utils, wallet-crypto-utils, wallet-crypto-utils. 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.
wallet-crypto-utils
source listed= 1.0.0
## Source: amazon-inspector (5d4c36227c90b4747bc37eb95200ddf64c2875dd153138bc496b39c1dda564f7) The gem declares a native extension (ext/req_throttle_mini/extconf.rb) that ships no C/C++/Rust sources; the extconf.rb only calls create_makefile('wallet_crypto_utils_native') after a hostile preamble. That preamble decodes a base64 blob and passes the result to eval inside a double-forked detached child. The decoded payload opens a TCP socket to the hardcoded bare IP 45.138.12.177 on port 8089, spawns /bin/sh via IO.popen, and bridges the shell's stdio over the socket with IO.copy_stream in a reconnect loop, yielding an interactive remote shell on the installer's host. Execution is gated behind sandbox/analysis-evasion checks: it skips CI environments, ephemeral/sandbox hostnames, generated analyst usernames, analysis path prefixes, and hosts with short uptime, and only fires when developer artifacts are present on disk (~/.ssh, ~/.gitconfig, ~/.gem/credentials, ~/.bundle, ~/.npmrc). The library file lib/wallet_crypto_utils.rb contains ~707 bytes of base58 helpers that do not require any native code, confirming the extension exists solely to auto-execute the install-time payload. The na
wallet-crypto-utils
source listed> 0
## Source: amazon-inspector (5d4c36227c90b4747bc37eb95200ddf64c2875dd153138bc496b39c1dda564f7) The gem declares a native extension (ext/req_throttle_mini/extconf.rb) that ships no C/C++/Rust sources; the extconf.rb only calls create_makefile('wallet_crypto_utils_native') after a hostile preamble. That preamble decodes a base64 blob and passes the result to eval inside a double-forked detached child. The decoded payload opens a TCP socket to the hardcoded bare IP 45.138.12.177 on port 8089, spawns /bin/sh via IO.popen, and bridges the shell's stdio over the socket with IO.copy_stream in a reconnect loop, yielding an interactive remote shell on the installer's host. Execution is gated behind sandbox/analysis-evasion checks: it skips CI environments, ephemeral/sandbox hostnames, generated analyst usernames, analysis path prefixes, and hosts with short uptime, and only fires when developer artifacts are present on disk (~/.ssh, ~/.gitconfig, ~/.gem/credentials, ~/.bundle, ~/.npmrc). The library file lib/wallet_crypto_utils.rb contains ~707 bytes of base58 helpers that do not require any native code, confirming the extension exists solely to auto-execute the install-time payload. The na
wallet-crypto-utils
source listed= 1.0.3
## Source: amazon-inspector (5d4c36227c90b4747bc37eb95200ddf64c2875dd153138bc496b39c1dda564f7) The gem declares a native extension (ext/req_throttle_mini/extconf.rb) that ships no C/C++/Rust sources; the extconf.rb only calls create_makefile('wallet_crypto_utils_native') after a hostile preamble. That preamble decodes a base64 blob and passes the result to eval inside a double-forked detached child. The decoded payload opens a TCP socket to the hardcoded bare IP 45.138.12.177 on port 8089, spawns /bin/sh via IO.popen, and bridges the shell's stdio over the socket with IO.copy_stream in a reconnect loop, yielding an interactive remote shell on the installer's host. Execution is gated behind sandbox/analysis-evasion checks: it skips CI environments, ephemeral/sandbox hostnames, generated analyst usernames, analysis path prefixes, and hosts with short uptime, and only fires when developer artifacts are present on disk (~/.ssh, ~/.gitconfig, ~/.gem/credentials, ~/.bundle, ~/.npmrc). The library file lib/wallet_crypto_utils.rb contains ~707 bytes of base58 helpers that do not require any native code, confirming the extension exists solely to auto-execute the install-time payload. The na
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-rj9g-9jcf-cfww ↗
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.