You can uninstall Drever.D by uninstalling the SIS file in which Drever.D was installed from using application manager:
Drever.D drops non-functional copy of the Simworks Symbian Anti-Virus. This non-functional copy overwrites the original file, preventing the software from working.
Detection for this malware was published on Nov 25th, 2005 in the F-Secure Mobile Anti-Virus update build 56
Write-up:Mika Tolvanen Nov 25th, 2005;