Street Fighter V Removes Buggy New Anti-Crack Tech

Capcom have removed the mysterious “anti-crack solution” they added to Street Fighter V [official site] in this week’s update. We knew the September update would add Urien, the Illuminati VP returning from earlier games, and he’s quite welcome. What was more of a surprise is the anti-crack tech that left some unable to play, triggered anti-virus and Windows warnings, and was generally unpleasant. That’s no good. But hey, at least they did remove it fairly swiftly.

The doodad was announced on Thursday shortly before the update rolled out. Capcom called it “an updated anti-crack solution (note: not DRM) that prevents certain users from hacking the executable.”

They continued, “The solution also prevents memory address hack that are commonly used for cheating and illicitly obtaining in-game currency and other entitlements that haven’t been purchased yet.”

Well! Even setting aside how you may feel about games rummaging in your operating system’s guts, it was wonked. It triggered anti-virus software for some, popped up annoying Windows security notices, made some folks’ computers crash… not good! After a bit of investigating and dithering, Capcom removed it last night.

“The rollback to the PC version of SFV prior to the security measure update is now live,” Capcom announced overnight. “The new September content is included.”

Which means I can end this post on a sunny note, explaining how to make Urien fight wearing his pants once more and cooing at the new stage KOs:


  1. Baines says:

    It wasn’t “mysterious”, at least not beyond Capcom refusing to admit that it was a rootkit installation that allowed the at-will silent temporary disabling of SMEP to run whatever code was passed to it.

    • Gormongous says:

      Yeah, it was apparently quite a simple little piece of software, it’s just that what it did was frankly unbelievable: an unsecured driver with kernel-level access.

  2. nimbulan says:

    I’m sorry…buggy? This “update” is probably the single largest security vulnerability in the history of gaming. They had the game install a kernel-mode driver with ZERO security that purposefully disabled Windows’ code execution protection and would automatically run any code passed to it. Anybody could easily hijack the driver to run any code with not just administrator, but system privileges.

    Decisions like this make Konami execs look smart.

  3. gwop_the_derailer says:

    Not familiar with OS programming, so I am curious about how much MS is at fault for allowing such a vulnerability.

    • Hobbes says:

      None. Under *normal* circumstances, your system keeps User Mode code and Kernel code distinct, and User mode code is sandboxed, that’s what SMEP is for, it keeps userspace from doing stuff it shouldn’t, with privileges it shouldn’t. What Capcom did was hack a driver into the game you install yourself, and thus give full permission locally to which then said “Disable SMEP because I want full Kernel access to run code regardless of the source”

      Capcom is entirely to blame for this, as it’s their shitty coding that effectively created a potential security hole that would be exploitable. You don’t disable SMEP in that manner, there are -some- instances when you want to disable sandboxing and have the userspace mix with kernel stuff (usually things like NIDS and Antivirus are allowed to get around things like SMEP but do so in a very limited manner) but simply telling SMEP to “Fuck off” and then execute what the hell you want?

      That’s all kinds of bad, of course, you have to authorise it before it can be placed locally on your system, so the best way to think of this is a Capcom created trojan which would in theory place a very nasty vulnerability onto your system.

      Don’t blame Microsoft for Capcom being a pile of wank, for once it’s not MS’s fault. Much as that hurts me to say it.

  4. smeaa mario says:

    Looking at how Urien’s jacket bends around with his body, I can’t help but wonder: Capcom still can’t make freely moving clothing for chars, can it?

  5. Spacewalk says:

    Urien’s thong is not good anti-crack technology.

    • Chillicothe says:


      But yah, welcome to modern Capcom: ruinous handling of good games.

  6. Ericusson says:

    Looks like grounds for legal action to be honest.

  7. Ericusson says:

    By the way is the game any good ?

    • Spuzzell says:

      Do you like Street Fighter games?

      If number = 1 Then GoTo Line1 Else GoTo Line2

      1 buy it

      2 buy something else

  8. po says:

    Well they’re doing better than Niantic. Their solution would be to ban all the PC players.