Adware/PullUpdate

Analysis

Adware/PullUpdate is a generic detection for software that automatically displays advertisements while the program is running. Adware is often not malicious, but unwanted. Although its behaviors are more controllable than malware, a user is often unaware of its being installed on the local machine.
Typical behaviors of advertising can be a window popping up while surfing on some websites, or unwanted items silently installed along with a desired software, and so on. Below are screenshots of some of the installation packages:

Figure 1: Installation prompt example 1.

Figure 2: Installation prompt example 2.

Recommended Action

• Make sure that your FortiGate/FortiClient system is using the latest AV database.
• Quarantine/delete files that are detected and replace infected files with clean backup copies.