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Development & Deployment of Multiplayer Online Games, page 2:

Bot Fighting 103. Code Integrity Checks, Code Scrambling

posted December 12, 2017 by "No Bugs" Hare

Quote:	“Bingo! We’ve got an executable, which automagically performs TONS of integrity checks, which checks are spread all over the executable, and are extremely non-obvious too.”
Another Quote:	“This approach of ‘not revealing code until attack costs are high’ is certainly not limited to payments.”
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posted December 5, 2017 by "No Bugs" Hare

Quote:	“it is fundamentally impossible to prevent (or detect) debugging, at least as long we’re staying on one single box.”
Another Quote:	“DON’T spend more than 10% of your overall anti-bot-fighting time budget on system-specific protections.”
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posted November 28, 2017 by "No Bugs" Hare

Quote:	“Some of the system calls are not absolutely necessary, and using them will significantly simplify life of the attacker”
Another Quote:	“Scrambling will help to protect your protocol even if the attacker manages to F.L.I.R.T. with your TLS library”
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posted November 21, 2017 by "No Bugs" Hare

Quote:	“One of the nastier-for-us features of IDA Pro is so-called F.L.I.R.T.”
Another Quote:	“All the popular protection methods lag well-behind capabilities of the average-attacker-on-a-100K-simultaneous-player-game.”
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posted November 14, 2017 by "No Bugs" Hare

Quote:	“Given enough time, everything can be broken”
Another Quote:	“in this fight, most of the non-cheating player population will be on our side”
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posted October 31, 2017 by "No Bugs" Hare

Quote:	“The point of Super-Replica is that it is a replica Slave DB which is larger than original Master DB”
Another Quote:	“this “don’t write some HISTORICAL data to Master DB” approach can easily allow to reduce the load on the Master OLTP DB by a factor of 2x-3x”
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posted October 24, 2017 by "No Bugs" Hare

Quote:	“there are still several Big Fat Reasons™ to use DIY replicas”
Another Quote:	“With the Replication Messages described above, it is ok to apply Replication Messages to Slave DB which is newer than exactly necessary.”
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