- cross-posted to:
- news@lemmy.linuxuserspace.show
- piracy@lemmy.dbzer0.com
- cross-posted to:
- news@lemmy.linuxuserspace.show
- 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.
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Right? I’ve not thought about download speeds since the 2000’s.
FDM does some clever things to boost download speeds. It splits up a download into different chuncks, and somehow downloads them concurrently. It makes a big difference for large files (for example, Linux ISOs).
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I guess many servers are capping speeds them. Makes sense since I almost never see downloads actually take advantage of my Gigabit internet speeds.
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It could make multiple requests to the server, asking each request to resume starting at a certain byte.
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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).
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just grabbed a gig file - it would take about 8 minutes with a standard download in Firefox. Use a manager or axel and it will be 30 seconds. Then again speed isnt everything, its also nice to be able to have auto retry and completion.
I was just going to recommend this too; Use axel, aria2 or even ancient hget.