Have you visited movie websites, particularly porn ones and encounters an error “Video ActiveX Object Error;” did it prompt you to download and install a file to be able to display the video? If you have installed the video codec called MacCodec then you may have been infected with OSX.RSPlug.A.
The PC-based fake codec used to trick users is now available on Mac systems. It has been described by Intego as:
A malicious Trojan Horse has been found on several pornography web sites, claiming to install a video codec necessary to view free pornographic videos on Macs. A great deal of spam has been posted to many Mac forums, in an attempt to lead users to these sites. When the users arrive on one of the web sites, they see still photos from reputed porn videos, and if they click on the stills, thinking they can view the videos, they arrive on a web page that says the following:
Quicktime Player is unable to play movie file.
Please click here to download new version of codec.After the page loads, a disk image (.dmg) file automatically downloads to the user’s Mac. If the user has checked Open “Safe” Files After Downloading in Safari’s General preferences (or similar settings in other browsers), the disk image will mount, and the installer package it contains will launch Installer. If not, and the user wishes to install this codec, they double-click the disk image to mount it, then double-click the package file, named install.pkg.
If the user then proceeds with installation, the Trojan horse installs; installation requires an administrator’s password, which grants the Trojan horse full root privileges. No video codec is installed, and if the user returns to the web site, they will simply come to the same page and receive a new download.
Below are the images for the fake wanings:


Many thanks for this
On principle I refuse to do anything for a programme which takes over my computer until I do. I just open a new browser window or switch off
Shooting themselves in the foot. I can’t be bothered looking at their sites any more
Thank you for this information. It’s possibly saved me a lot of heartache.
OMG! I was 2 seconds away from just clicking “continue” because it wouldn’t let me even change pages on Safari and I’ve pretty much had the mentality that Mac’s are virus proof (naive, I know) but I am so glad I decided to force quit and check it first! THANK YOU for this information!!
HELP!!! I just downloaded the codec!! I have a mac. PLEASE tell me what to do to remove this threat!!!
My Safari was set to Open “Safe” Files After Downloading, but i did not authorize any installantion wich required admnistrator’s password.
Is my system infected?
Please help me out!
Thanks in advance.
None of these ActiveX removal tools are for Mac. Where is a Mac tool available?
Tnx!
g
Woops I fell 100% into the trap ! But I’m pretty sure my MacBook doesn’t risk much anyways. Just in case, what would be signs that the Trojan is active ? How could I remove it if it seems to be threatening my system ?
thnk u 4 that all..
thank u 4 imformation about that im happy now to wacth ….