Backdoor:OSX/Olyx.C
Summary
Backdoor:OSX/Olyx.C connects to a remote server to receive further instructions, without the knowledge or permission from the user.
Removal
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
- Check for the latest database updates
First check if your F-Secure security program is using the latest updates, then try scanning the file again.
- Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
- Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
Technical Details
Arrival
Olyx.C is dropped into the system by malicious Word documents that exploit the vulnerability identified by CVE-2009-0563.
Installation
The malware drops the following copy of itself:
- /Applications/Automator.app/Contents/MacOS/DockLight
It creates the following launchpoint for the file above:
- ~/Library/LaunchAgents/com.apple.DockActions.plist
Payload
The malware connects to a2012[...].slyip.net[...] to obtain additional commands.
The backdoor is capable of performing the following actions:
- Downloading and uploading files
- Executing shell commands
Other variants
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