- cross-posted to:
- piracy@lemmy.dbzer0.com
- cross-posted to:
- piracy@lemmy.dbzer0.com
A reported Free Download Manager supply chain attack redirected Linux users to a malicious Debian package repository that installed information-stealing malware.
The malware used in this campaign establishes a reverse shell to a C2 server and installs a Bash stealer that collects user data and account credentials.
Kaspersky discovered the potential supply chain compromise case while investigating suspicious domains, finding that the campaign has been underway for over three years.
The key thing to know is that a client can do an HTTP
HEAD
request to get just theContent-Length
of the file, and then performGET
requests with theRange
request header to fetch a specific chunk of a file.This mechanism was introduced in HTTP 1.1 (byte-serving).
Huh… that’s super interesting and thanks for sharing.