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Malicious package

Ultimate.Wpf.ToolkitNuGet

Malicious code in Ultimate.Wpf.Toolkit (NuGet) Remove it immediately and rotate any exposed credentials.

MAL-2024-4691
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
remove Ultimate.Wpf.Toolkit

Malicious versions

202 flagged
1.0.11.0.21.0.31.0.41.0.51.0.61.0.71.0.81.0.91.0.101.0.111.0.121.0.131.0.141.0.151.0.161.0.171.0.181.0.191.0.201.0.211.0.221.0.231.0.241.0.251.0.261.0.271.0.281.0.291.0.301.0.311.0.321.0.331.0.341.0.351.0.361.0.371.0.381.0.391.0.401.0.411.0.421.0.431.0.441.0.451.0.461.0.471.0.481.0.491.0.501.0.511.0.521.0.531.0.541.0.551.0.561.0.571.0.581.0.591.0.601.0.611.0.621.0.631.0.641.0.651.0.661.0.671.0.681.0.691.0.701.0.711.0.721.0.731.0.741.0.751.0.761.0.771.0.781.0.791.0.801.0.811.0.821.0.831.0.841.0.851.0.861.0.871.0.881.0.891.0.901.0.911.0.921.0.931.0.941.0.951.0.961.0.971.0.981.0.991.0.1001.0.1011.0.1021.0.1031.0.1041.0.1051.0.1061.0.1071.0.1081.0.1091.0.1101.0.1111.0.1121.0.1131.0.1141.0.1151.0.1161.0.1171.0.1181.0.1191.0.1201.0.1211.0.1221.0.1231.0.1241.0.1251.0.1261.0.1271.0.1281.0.1291.0.1301.0.1311.0.1321.0.1331.0.1341.0.1351.0.1361.0.1371.0.1381.0.1391.0.1401.0.1411.0.1421.0.1431.0.1441.0.1451.0.1461.0.1471.0.1481.0.1491.0.1501.0.1511.0.1521.0.1531.0.1541.0.1551.0.1561.0.1571.0.1581.0.1591.0.1601.0.1611.0.1621.0.1631.0.1641.0.1651.0.1661.0.1671.0.1681.0.1691.0.1701.0.1711.0.1721.0.1731.0.1741.0.1751.0.1761.0.1771.0.1781.0.1791.0.1801.0.1811.0.1821.0.1831.0.1841.0.1851.0.1861.0.1871.0.1881.0.1891.0.1901.0.1911.0.1921.0.1931.0.1941.0.1951.0.1961.0.1971.0.1981.0.1991.0.2004.6.04.6.1

Indicators of compromise (SHA-256)

b68788c0438a465cb180df95db45a886908d47e07154634f90fb1f8d76ff8c7b
c78b50a7e1e74842989d6eaa58b50d8f6f9a5603bd96a513ef5298f06770fb1c

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for Ultimate.Wpf.Toolkit (202 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging Ultimate.Wpf.Toolkit across your stack and pipelines.

  2. If you installed it — respond

    Remove Ultimate.Wpf.Toolkit from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If Ultimate.Wpf.Toolkit was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks Ultimate.Wpf.Toolkit before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. Ultimate.Wpf.Toolkit on NuGet has been identified as a malicious package (versions 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, and 194 more flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-03474RLUA-2024-07753

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks Ultimate.Wpf.Toolkit-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Ultimate.Wpf.Toolkit (NuGet) malicious package — MAL-2024-4691 | O3 Security