About two weeks ago I found a malware installer while cleaning up a clients PC. Being a public-spirited person, I submitted it to every AV company I could think of. I also checked it with NOD32 on my personal machine. Horrified that nothing was detected, I quarantined the file and submitted it that way. Four days later the file still wasn't being detected as malicious so I submitted it via email as per Eset's suggested method on their website on 13th and 15th October. It still isn't being detected.