I have tried to debug periodically slow applications where the real culprit has shown to be the virus scanner.

我曾经在调试运行缓慢的应用时偶尔发现，真正的根源是病毒扫描程序。

youdao

Check the file with a virus scanner.

使用查病毒程序检查文件。

youdao

It could overcome the shortage of normal virus scanner-which could not detect unknown virus.

该方法可以克服病毒特征代码扫描法不能识别未知病毒的缺点。

youdao

"The initial program installed itself as a browser helper object (BHO) for Internet Explorer that downloaded a component from childhe.com and attempted to trick the victim into installing a fake anti-virus scanner from bestantispyware securityscan.com and protectionsoft warecheck.com, " he explained.

BBC: Hackers website

The infected ads placed by DoubleClick installed software on machines that warned users of a virus infection--and suggested they buy a scanner program.

FORBES: Future Phishing