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ws
Registered: Apr 2012
Posts: 251 |
Malicious Packer?
I was interested in this entry Galaxy Cargo + Poker because i wanted to see if the badness of the raster routine had anything to do with PAL/NTSC timing. It turned out, that it is just very badly coded.
What puzzled me was, that the depacker was partially obfuscated by an EOR routine. I reverted that and started the program again, but for fun i also altered the chars in the SYS line to WS/G*P. Prog started and all of a sudden, my attached disk was empty, named "PREPARE TO DIE!". (I probably could have used Ians Unp64 V2.36, which gives a depacked largefile, but what i wanted was to have just an de-ofuscated original binary.) My mistake was to not examine the code any further.
This packer actually has a routine checking if the sysline was altered, and if so, the routine will format your currently inserted Disk or VOLUME to "PREPARE TO DIE!". Imagine if one had mounted a flashdrive or even an entire harddisk. Quite dangerous.
Does anybody know something about this >PWR< Packer(?) thing?
Are there any other examples of malicious C64 code like this, like screwing up your disk if things have been altered? |
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hedning
Registered: Mar 2009
Posts: 4721 |
I don't know if this one was discussed before. The Bonanza Crew spread a lot of disks with some kind of protection against tampering with the disks. I had to reach out to Mason to add cleaned up versions of their releases four years ago, like Super Real Darwin + [seuck].
If you tamper with the disk in any way the disk will get erased. Here's the Darwin spread disk in it's evil original form: https://www.dropbox.com/scl/fi/swwzr8yaln7pxbn44ajiy/Bonanza.zi.. |
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chatGPZ
Registered: Dec 2001
Posts: 11354 |
A bunch of those people who sold cracks also put timebombs into their stuff...like you can run it 100 times, then it deletes itself |
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Krill
Registered: Apr 2002
Posts: 2969 |
Quoting chatGPZA bunch of those people who sold cracks also put timebombs into their stuff...like you can run it 100 times, then it deletes itself And today, it's the game producers themselves doing this. =) |
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chatGPZ
Registered: Dec 2001
Posts: 11354 |
Not really. That'd be a disaster if anyone noticed it. |
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Krill
Registered: Apr 2002
Posts: 2969 |
Quoting chatGPZNot really. That'd be a disaster if anyone noticed it. I meant that they're selling games as a service with subscription fees. =) |
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AlexC
Registered: Jan 2008
Posts: 298 |
Actually Sony has installed a rootkit on CD in the past and many if not all anti-cheating / DRM systems could be quite malicious from end-user perspective not to mention disliking being run under debugger which can be equivalent of running with AR enabled back in the 80's. |
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chatGPZ
Registered: Dec 2001
Posts: 11354 |
Quote:I meant that they're selling games as a service with subscription fees. =)
I know - but i am not falling for the bite. "Buying" a game never meant you have the right to play it until eternity under all circumstances. |
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Fungus
Registered: Sep 2002
Posts: 680 |
When you buy something sold with a perpetual license, it is yours to play until the end of the universe. EULA are not legal contracts and I hope to hell someone challenges this in court because it's bullshit.
Also just avoid ubisoft and any other such company like Sony then. It's anti-consumer and shouldn't be legal. |
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chatGPZ
Registered: Dec 2001
Posts: 11354 |
So you took the bite instead :) (And i can play my Sony and Ubisoft games as long as i want, really. Hooray for them!) |
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Fungus
Registered: Sep 2002
Posts: 680 |
Until your internet goes down ;) Or they take your ability to play it away, like The Crew. |
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