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Anti Flashback Trojan is a free application that checks for the Flashback Trojan.

Flashback is a variant of the Tsunami Trojan for Mac OS X, and has so far infected over 600, 000 of them. Now you can check whether your Mac is infected with the Flashback-Trojan without resorting to manual removal in Terminal. For more information what Flashback does, including manual removal instructions, see the F-Secure website.

Incidentally, all my apps are free, so any donation would be very much appreciated.

What's New

Version 2.1.1:
  • Adds a google chrome scan (improved virus search)
  • Adds a download link to the apple flashback remove tool
  • Some minor changes


OS X 10.5 or later

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Anti Flashback Trojan User Discussion

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AsSpants Member IconComment+8

The operation couldn't be completed. (OSStatus error -67049)

Reply0 replies
Version 2.1
Imho Member IconComment+50

Downloaded the new version. Tried to open it, but it gave me twice an error message ...

Reply0 replies
Version 2.1
Schmye-Bubbula Member IconComment+16

I can't glean from the description or from the publisher's website whether this thing will actually remove the malware, or only check for it.

Reply1 reply
Version 2.0.4

The release notes for the latest update include adding a download link to the removal tool, so presumably it only checks. If you're infected, it'll let you know where to go to remove it.

B. Jefferson Le Blanc Member IconComment+648
B. Jefferson Le Blanc

This app is viable if for no other reason than it works on OS X 10.5. Apple has stopped supporting OS versions before Snow Leopard so there's no Java update for Leopard users. They might appreciate a tool that can check their systems for infection. Indeed, so might Tiger users. That said, they would all be well advised in the now riskier climate for Mac security to install an app like ClamXav that still supports older Macs.

Reply1 reply
Version 2.0.3

Beware of relying solely on ClamXav, though. I've tested more than a few trojans with it and it didn't detect them. ClamXav is great, but I never rely on it alone.

Jazzica Member IconComment+441

I was using Dreamweaver on my Mac about 2 weeks ago. A very suspicious window closely resembling but not exactly like the flash installer popped up and said I was running an old version of flash and needed to update it. It directed me to enter my password, not giving me a choice. I refused. I restarted and no more installer.

My flash version was not only up-to-date. It was a an advanced beta version. This has not happened since. I'd steer clear of scripts offering to delete this 'virus' since Mac has put out a very effective Java fix, and since this bug is supposedly very hard to remove. I would NOT click "update" on any flash installer that appears out of nowhere ordering you to install a version not listed on Adobe's web site. If it's not on Adobe's download page, it's fake.

Reply0 replies
Version 2.0.3
LizBo Member IconComment+108

I have serious doubts about the credibility of the people claiming this trojan infected 600,000 Mac computers. I think the numbers are a outright lie and exaggerated to scare people into buying AV software. I was not infected, none of my friends or family were infected. And none of the 10,000+ worldwide clients the company I work for had a single reported infection.

Reply1 reply
Version 2.0.2

why not?? my imac was found to be infected!! so im am definitely one of the 600,000, probably more!! not sure how it happened but apple's java update said it was infected and removed it. heard online that a fake adooe flash installer was the culprit, though i always get my flash updates from adobe's site.My imac is very secure with vpns,espionage,file vault,security spy,etc. I secure delete everything,make fresh TM backups faithfully,repair with various tools including diskwarrior 4.4,disk utility,cleanmymac,macscan and virus barrier. All always come out clean except for this flashback infection. Could happen to anyone.

Mysticalos Member IconComment+268

apples tool is out now


Reply1 reply
Version 2.0.2

Note that it's only for Lion users without java installed.

Beamy Member IconComment+200

You may also try the Kaspersky Flashfake Trojan removal tool :




Reply1 reply
Version 1.0.2

Had two users today get locked out of their accout using Kaspersky's script. They were also using the wrong reference. I left them a couple of notes on this.

F-secure also posted their tool moments ago. Looks promising, but time will tell.

Apple promises us something RSN...

Strych9 Member IconComment+56

Reports need to clean but Fsecure defaults read ~/.MacOSX/environment DYLD_INSERT_LIBRARIES reports nothing...
Thanks a lot anyway for your help.

Reply0 replies
Version 1.0.2
Tareed Member IconReview+29

Be cautious of relying on scripts like this one. It is based on instructions for a specific variant from F-Secure, which do not work for all variants. It would be better to rely on some good anti-virus software, like Sophos Anti-Virus for Mac Home Edition or ClamXav, both of which are completely free, with no subscriptions or time limitations. And no, I'm not associated with either product.

Reply1 reply
Version 1.0.2

Ya, this is one of the reasons the antivirus/malware companies are behind the curve on this one.

user icon+14
Version 2.0.2
user icon+1
Jason T.
Version 2.0
user icon+104
Version 1.0.1
user icon+29
Version 1.0
> 5 8


Current Version (2.x)


Downloads 21,847
Version Downloads 5,933
Type Utilities / Virus
License Free
Date 10 Jan 2013
Platform Intel 64 / OS X / Intel 32
Price Free
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