PC Utilities Software Limited - 15% Detection Rate *
Did you just stumble upon a download or a file on your computer that has a digital signature from PC Utilities Software Limited? Some of the security products refers to the detected files as PUP/Win32.Optimizer and OptimizerPro. The detection rate for the PC Utilities Software Limited files collected here is 15%. Please read on for more details.
You will probably notice PC Utilities Software Limited when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view the additional details from the PC Utilities Software Limited digital signature with the following steps:
- Open Windows Explorer and locate the PC Utilities Software Limited file
- Right-click on the file and select Properties
- Click the Digital Signatures tab
- Click on the View Certificate button
Here's a screenshot of a file digitally signed by PC Utilities Software Limited:
As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by PC Utilities Software Limited and that the file has not been tampered with.
If you click the View Certificate button shown in the screengrab above, you can see all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also examine the address for PC Utilities Software Limited, such as the street name, city and country.
Go Daddy Secure Certification Authority and COMODO Code Signing CA 2 has issued the PC Utilities Software Limited certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
PC Utilities Software Limited Files
The following are the PC Utilities Software Limited files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 8/47 | optpro~1.dll |
| 1/47 | OptProCrash.exe |
| 1/47 | OptProCrash.exe |
| 2/50 | OptProLauncher.exe |
| 5/52 | OPTPRO~3.DLL |
| 1/48 | OptProLauncher.exe |
| 10/50 | optpro~1.dll |
| 12/56 | OptProLauncher.exe |
| 5/47 | OptProCrashSvc.dll |
| 8/57 | OptProLauncher.exe |
| 2/50 | OptProCrashSvc.dll |
| 1/50 | LiveSupport_setup.exe |
| 8/54 | OptProLauncher.exe |
| 13/54 | DriverPro[1].exe |
| 3/55 | _iu14D2N.tmp |
| 15/56 | OptProReminder.exe |
| 20/55 | OptProSmartScan.exe |
| 10/56 | OptProHelper.dll |
| 13/57 | OptProLauncher.exe |
| 1/48 | OptProLauncher.exe |
| 3/48 | OptProSmartScan.exe |
| 3/50 | __tmp_3de0b393 |
| 1/51 | _iu14D2N.tmp |
| 7/52 | OptProReminder.exe |
| 7/53 | optpro~2.dll |
| 5/52 | OptProLauncher.exe |
| 1/54 | _iu14D2N.tmp |
| 13/55 | OptProLauncher.exe |
| 11/55 | OptProLauncher.exe |
| 10/55 | OptProLauncher.exe |
| 0/48 | OPTPRO~2.DLL |
| 0/50 | OPTPRO~2.DLL |
| 0/48 | optpro~1.dll |
Scanner and Detection Names
Here's the detection names for the PC Utilities Software Limited files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVG | MalSign.Generic.89B, Generic.038, Generic.943, Generic5.AXKX, Generic5.AYVE, OptimizerPro.781 |
| AVware | OptimizerPro (fs), Trojan.Win32.Generic!BT |
| Ad-Aware | Gen:Variant.Adware.BProtector.5, Gen:Trojan.Heur.LP.lu5@aGDq!5fi |
| Agnitum | Riskware.Agent!, PUA.SpeedingUpMyPC!, Riskware.OptimizerPro! |
| AhnLab-V3 | PUP/Win32.Optimizer |
| Antiy-AVL | Trojan[:HEUR]/Win32.AGeneric, RiskWare[RiskTool:not-a-virus]/Win32.OptimizerPro, RiskWare[RiskTool:not-a-virus]/Win32.Agent, Trojan/Win32.Generic |
| Avira | APPL/OptimizPro.RE |
| Baidu-International | Hacktool.Win32.OptimizerPro.aJ, Adware.Win32.SpeedingUpMyPC.bD, Hacktool.Win32.OptimizerPro.aG, Hacktool.Win32.OptimizerPro.AOQ, Hacktool.Win32.OptimizerPro.AQ, Adware.Win32.OptimizerPro.50, Adware.Win32.SpeedingUpMyPC.BD, Hacktool.Win32.OptimizerPro.AU, Hacktool.Win32.OptimizerPro.AwL |
| BitDefender | Gen:Variant.Adware.BProtector.5, Gen:Trojan.Heur.LP.lu5@aGDq!5fi |
| Bkav | W32.HfsAdware.3B05, W32.HfsAdware.ADD5 |
| CAT-QuickHeal | RiskTool.OptimizerPro.r8 (Not a Virus) |
| Comodo | ApplicUnwnt |
| DrWeb | Program.Unwanted.99, Program.Unwanted.29, Trojan.PWS.Tibia.2591 |
| ESET-NOD32 | a variant of Win32/SProtector.E, a variant of Win32/AdWare.SpeedingUpMyPC.D, a variant of Win64/SProtector.A, a variant of Win32/SProtector.F, a variant of Win32/AdWare.SpeedingUpMyPC.Q, a variant of Win32/Adware.SpeedingUpMyPC.C, a variant of Win32/SProtector.D, probably a variant of Win32/SProtector.E |
| Emsisoft | Gen:Variant.Adware.BProtector.5 (B), Gen:Trojan.Heur.LP.lu5@aGDq!5fi (B) |
| F-Prot | W32/A-f4372f06!Eldorado |
| F-Secure | Gen:Variant.Adware.BProtector.5 |
| Fortinet | Riskware/OptimizerPro |
| GData | Gen:Variant.Adware.BProtector.5, Win32.Application.OptimizerPro.F, Gen:Trojan.Heur.LP.lu5@aGDq!5fi, Win32.Application.OptimizerPro.D, Win32.Application.OptimizerPro.C |
| Ikarus | PUA.SpeedingUpMyPC |
| K7AntiVirus | Adware ( 004a9c571 ), Adware ( 004ae5521 ), Unwanted-Program ( 00454f261 ) |
| K7GW | Adware ( 004a9c571 ), Adware ( 004ae5521 ), Unwanted-Program ( 00454f261 ) |
| Kaspersky | not-a-virus:RiskTool.Win32.OptimizerPro.b, not-a-virus:RiskTool.Win32.Agent.iht |
| Kingsoft | Win32.Troj.OptimizerPro.b.(kcloud), Win32.Troj.Agent.i.(kcloud) |
| Malwarebytes | PUP.Optional.OptimizerPro, PUP.Optional.OptimizePro.A |
| McAfee | Artemis!85A3FE6858EB, Artemis!7FFEB410AB96, Artemis!256AA851F94E, Artemis!76D4489A9B97, Artemis!F40F37898930, Artemis!049247DB5361, Artemis!7EDA1B457D12 |
| McAfee-GW-Edition | Artemis!85A3FE6858EB, Artemis!7FFEB410AB96, BehavesLike.Win32.BadFile.ch, Artemis, BehavesLike.Win32.BadFile.th |
| MicroWorld-eScan | Gen:Variant.Adware.BProtector.5, Gen:Trojan.Heur.LP.lu5@aGDq!5fi |
| NANO-Antivirus | Riskware.Win32.OptimizerPro.dhymgq, Riskware.Win32.OptimizerPro.djgcma, Riskware.Win32.OptimizerPro.dioyqs, Trojan.Win32.MLW.cxcbxw, Riskware.Win32.Agent.denosn |
| Panda | Trj/CI.A, Generic Suspicious, Trj/Genetic.gen |
| Qihoo-360 | HEUR/QVM05.1.Malware.Gen, Win32/Virus.RiskTool.825, Win32/Trojan.e6d, HEUR/Malware.QVM05.Gen |
| Sophos | Generic PUA MC |
| Symantec | OptimizerPro |
| TrendMicro-HouseCall | TROJ_GEN.F47V0423, Suspicious_GEN.F47V1122, Suspicious_GEN.F47V1204, Suspicious_GEN.F47V0210, TROJ_GEN.F47V1108, TROJ_GEN.F47V0531, TROJ_GEN.F47V0509, Suspicious_GEN.F47V1108 |
| VIPRE | OptimizerPro (fs) (not malicious), Trojan.Win32.Generic!BT |
| Zillya | Adware.SpeedingUpMyPC.Win32.1 |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I have gathered 5427 scan reports for the PC Utilities Software Limited files. 807 of these scan results came up with some sort of detection. You can view the full details of the scan reports by examining the files listed above.
Analysis Details
The analysis is based on certificates with the following serial numbers:
- 2b239babc97410
- 00cf20edfb9e9d56f429a44e79c3465805
- 44e2576b707881ca345e8a3219eddebe
- 4b6a44f88ec8cf