MALICIOUS (1) campaign cataloged at 2026-10-20(2).

1. The campaign has clearly malicious intent, like infostealers.
2. This is just the date of creating the catalog entry. It may not reflect the date of creation of the campaign itself.

2026-10-semvver

During installation, package downloads and executes malware.

Abuse categories

malware

Package contains or installs known malware.

remote_executable

Downloads and executes a remote executable.

typosquatting

The package name is an typosquatting variant of a popular package.

References

Referenced resources may include blog posts about the campaign, malware analysis, sandbox reports, or other relevant information.

• VirusTotal results

IoCs & related URLs

URLs with payloads, characteristic domains, C&C IPs, repositories with malicious code, etc.

• hxxps://c2-worker.crawlnet-claim.workers.dev/dl/pyupd

• c2-worker.crawlnet-claim.workers.dev

Packages in the campaign

campaign:2026-10-semvver

• semmver
• semveer
• semverr
• semvver