“Who’s your Verisign?” — Malware faking digital signatures
Troj/BHO-QP is a rogue Browser Helper Object (BHO) which masquerades as a Flash Player extension from Microsoft, when in fact the BHO is a backdoor agent installed alongside QQ game automation freeware. The BHO has been seen installed as a file named directdbres.dll
See the article here:
“Who’s your Verisign?” — Malware faking digital signatures