Which versions of vanc2selo1778552388 are malicious?

The following RubyGems versions of vanc2selo1778552388 are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate vanc2selo1778552388 if I installed it?

vanc2selo1778552388 establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.

I already installed vanc2selo1778552388 — how do I know if it already compromised me?

If vanc2selo1778552388 was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Is vanc2selo1778552388 part of a known attack campaign?

Yes — vanc2selo1778552388 is associated with the RLMA-2026-03750, RLUA-2026-09679 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find vanc2selo1778552388 across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for vanc2selo1778552388 (version 0.0.1).

Malicious package

vanc2selo1778552388RubyGems

Advisory published Jul 7, 2026Updated Sep 24, 2026

vanc2selo1778552388 is a confirmed malicious RubyGems package (MAL-2026-9099) that opens a backdoor for remote access (malicious version 0.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in vanc2selo1778552388 (RubyGems)

MAL-2026-9099

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

gem uninstall vanc2selo1778552388

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

1b3a54cfd0508e493950e1656f12fd4177563f8b7a65d13ec9e78511d6d0b004

7bbd2d338036c319a5d06bd774adb142301945d0fab757fbfdbc2e1d5aa1e5b6

Detection & response playbook

Backdoor / remote access

Find it
Search your lockfiles and build artifacts for vanc2selo1778552388 (version 0.0.1).
If you installed it — respond
vanc2selo1778552388 establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.
Did it already run?
If vanc2selo1778552388 was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. vanc2selo1778552388 on RubyGems has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-03750RLUA-2026-09679

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks vanc2selo1778552388-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database