Last weekend, I caught on VirusTotal a trojan disguised as Windows IRC bot. It was detected thanks to my ‘psexec’ hunting rule which looks definitively an interesting keyword (see my previous diary). I detected the first occurrence on 2018-03-24 15:48:00 UTC. The file was submitted for the first time from the US. The strange fact is that the initial file has already a goods code on VT (55/67) and is detected by most of the classic antivirus tools.