Welcome to the Virus Encyclopedia of Panda Security.
It spreads and affects other computers.
It changes system permissions.
It uses stealth techniques to avoid being detected by the user.
, via mapped drives, through shared network resources.
|First detected on:||Aug. 8, 2008|
|Detection updated on:||Dec. 18, 2009|
Autorun.ACA is a worm that spreads by copying itself, without infecting other files.
It reduces the security level of the computer:
it changes system permissions, decreasing the security level.
It uses stealth techniques to avoid being detected by the user:
- It uses techniques included in its code to hide itself while it is active.
- It terminates processes corresponding to several security tools, such as antivirus programs and firewalls, to prevent detection.
- It modifies system permissions in order to hide itself.
Autorun.ACA uses the following propagation or distribution methods:
- Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.
- Computer networks (mapped drives): it creates copies of itself in mapped drives.
- Computer networks (shared resources): it creates copies of itself in shared network resources to which it has access.