Not quite going by strict definitions of malware, but it skates pretty close to annoying and intrusive software in my humble opinion.
Recently I had to work on a Windows XP based machine with a Symantec anti-virus ‘solution’ installed. As with most Windows PC’s, the system had ground down to a halt and was complaining of a full hdd. I was trying to troubleshoot the problem that disk-cleanup would not fix.
I installed Treesize, ran it and discovered in the ‘All Users’ profile the source of the problem.
The Windows partition was approximately 70gb. 46gb were taken up by temporary files created by Symantec in “C:/Documents and Settings/All Users/Application Data/Symantec/Symantec Antivirus Corporate Edition/7.5/xfer_tmp/”
I solved the problem by deleting the temp files and the xfer_tmp directory. I didn’t even check this was the right solution – if the program had crashed that would have been a bonus as far as I was concerned.
This is not just a program bug, this is borderline negligible, considering it’s supposed to be corporate software. It may not be malware by typical definition, but in my case: Installed by default and without choice or consultation, rendering the PC unusable – it’s malware to me.
I’m just glad I run Linux and don’t have to put up with this crapware most of the time.