pypi · Malicious package advisory
Malwarepafer
MAL-2026-17756
Malicious code in pafer (PyPI)
Details
--- _-= Per source details. Do not edit below this line.=-_ ## Source: kam193 (a74b7c5b356a87fe0262954cbedbcc432497ab25edaccbade0ce9ce04b16a8c9) In this campaign, the main package (webreader) has an embeded pickle disguised as a config. A related dependency (pafer) contains code to load the pickle. During unpickling, malicious code embeded in the pickle file is automatically executed. It then establishes persistence via a PTH file and downloads the next stage payload. It finally acts like a RAT, allowing remote exfiltration and code execution. --- Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-10-webreader Reasons (based on the campaign): - rat - Downloads and executes a remote malicious script. - obfuscation - The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine. - abuses-pth - persistence - The malicious code is intentionally included in a dependency of the package - files-exfiltration
Compromised versions (2)
- 0.9.7
- 0.9.8
Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.