I installed Adobe’s flash player 6 on my pc tonight and was surprised to see Comodo Antivirus kick in with a “Not-a-virus:RiskTool.Win32.PsKill.q” for the nsprocess.dll file included as part of the install – presumably to kill any previous installs currently running. I’ve seen things like this with Symantec Antivirus and pskill from sysinternals before but not with Flash Player!
I submitted the file to virustotal.com and got the following results.
| Antivirus | Version | Update | Result |
| AhnLab-V3 | 2007.5.10.0 | 05.09.2007 | Win-Trojan/ProcKill.4096.B |
| AntiVir | 7.4.0.15 | 05.09.2007 | no virus found |
| Authentium | 4.93.8 | 05.08.2007 | no virus found |
| Avast | 4.7.997.0 | 05.09.2007 | no virus found |
| AVG | 7.5.0.467 | 05.09.2007 | no virus found |
| BitDefender | 7.2 | 05.10.2007 | no virus found |
| CAT-QuickHeal | 9.00 | 05.09.2007 | no virus found |
| ClamAV | devel-20070416 | 05.09.2007 | no virus found |
| DrWeb | 4.33 | 05.09.2007 | no virus found |
| eSafe | 7.0.15.0 | 05.08.2007 | no virus found |
| eTrust-Vet | 30.7.3622 | 05.09.2007 | no virus found |
| Ewido | 4.0 | 05.09.2007 | no virus found |
| FileAdvisor | 1 | 05.10.2007 | No threat detected |
| Fortinet | 2.85.0.0 | 05.09.2007 | no virus found |
| F-Prot | 4.3.2.48 | 05.09.2007 | W32/Trojan.RZG |
| F-Secure | 6.70.13030.0 | 05.10.2007 | no virus found |
| Ikarus | T3.1.1.7 | 05.09.2007 | no virus found |
| Kaspersky | 4.0.2.24 | 05.10.2007 | no virus found |
| McAfee | 5027 | 05.09.2007 | potentially unwanted program Generic PUP |
| Microsoft | 1.2503 | 05.09.2007 | no virus found |
| NOD32v2 | 2255 | 05.09.2007 | no virus found |
| Norman | 5.80.02 | 05.09.2007 | no virus found |
| Panda | 9.0.0.4 | 05.09.2007 | no virus found |
| Prevx1 | V2 | 05.10.2007 | no virus found |
| Sophos | 4.17.0 | 05.08.2007 | no virus found |
| Sunbelt | 2.2.907.0 | 05.05.2007 | no virus found |
| Symantec | 10 | 05.10.2007 | no virus found |
| TheHacker | 6.1.6.112 | 05.10.2007 | Trojan/KillProc.p |
| VBA32 | 3.12.0 | 05.09.2007 | no virus found |
| VirusBuster | 4.3.7:9 | 05.09.2007 | no virus found |
| Webwasher-Gateway | 6.0.1 | 05.09.2007 | no virus found |
That is 5 antivirus products that presumably block or intefere with Flash from being installed.