21 November 2010

BitTorrent 7.2 is more then 5 times bigger than BitTorrent 7.1 - 3 MB Junk in Bittorrent 7.2 exe

The new Bittorrent 7.2 is more than 5 times bigger as Bittorrent 7.1

Improvements, exe packers/protectors or Trash added - Ads?

all versions

Bittorrent 7.2 Clean EdiTioN Green + Blue

Lets unpack bittorrent: OEP is 0048C1E2

1. Section Payload (Ads useless trash injected)
2. remove all junk in exe but keep bittorrent application
3. rebuild + correct IAT

From 4,54 MB to 1,07 MB from "upx'ed" Original File size (cleaned)

result from 4,54 MB (packed) to 1,07 MB (unpacked + cleaned) = 3,5 MB trash inside of BitTorrent 7.2 exe (mostly junk - payload section with ask toolbar etc...)

only unpacked and cleaned: unpacked.exe 1.07 MB

Applied DHT patch + skip first start ask toolbar ads install dialog - Green. BitTorrent Blue with stats removed, DHT Patch and skip 1st start.

Blue (+stats removed):
BitTorrent.exe 1.07 MB

BitTorrent.exe 1.07 MB


Bittorrent 7.1 is upx compressed, decompressed about 1 mb. Version 7.2 use also upx. I unpacked upx so the real size is above 5 mb by this version.

1/10 from "upx'ed" Original File size (cleaned and packed again)

Here is a tiny build cleaned as written above and packed with PECompact to a filesize of only 394 KB (like uTorrent).

BitTorrent-pec.exe 394.00 KB

BitTorrent-pec.exe 394.50 KB

Compressed with MPRESS (slight
faster process start but may show false positive):

BitTorrent-mpress.exe 405.00 KB

BitTorrent-mpress.exe 405.00 KB


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