Do you know what Trojan-Downloader.Adload.pd is?
Trojan-Downloader.Adload.pd is a warning message advertised by a rogue anti-spyware program such as Files Secure or IE Defender. Trojan-Downloader.Adload.pd is not a virus but a variant of Trojan.Win32.agent.akk and Trojan.Win32.
Do not click on any Trojan-Downloader.Adload.pd fake popup ads. Trojan-Downloader.Adload.pd popup ads may redirect you to a site for purchasing rogue anti-spyware. Do not under any circumstances download or purchase the rogue anti-spyware programs offered.
In non-techie terms: Trojan-Downloader.Adload.pd is very similar to other Trojans which are usually installed from an actual rogue anti-spyware program. The popup messages may be in the form of system alert messages. At all costs do not click on the system alert messages, it may prompt you to download or install a rogue anti-spyware program infecting your system even further.