Magnet Link and corrupt Download

[Sonnentier]

I noticed something strange:
I entered a new magnet link to Phex, a file that should be several MBytes big. I had contact with one Peer, then a 23KByte big file was finished downloading, a file that has some DRM in it, definately not the file I requested.

I think the Peer that sent me the data was malicious and sent me content not fitting my SHA1 hashsum (I checked the file after completion, and the key was completely different).

Is it possible that Phex doesnt check the hash after finishing? Somehow, this malicios node has disrupted the download..

perhaps not the primary problem here, but it's not easy to make sure against malicious nodes as you don't have a hash for each chunk, right? One magnet, which you can only check as a whole file. I mean, first the size is unknown, then a filesize appears - which can firstly not be trustworthy.

All these Spambots and stupid nodes are sometimes really annoying.. in other examples they sent results which did not fit my query..