Lavasoft Limited - 0.613% Detection Rate *

Did you just download a file that is digitally signed by Lavasoft Limited and wonder if the file is safe? If that's the case, please read on.

You will typically see Lavasoft Limited when clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

Screenshot where Lavasoft Limited appears as the verified publisher in the UAC dialog

You can also view the Lavasoft Limited certificate with the following steps:

  1. Open up Windows Explorer and locate the Lavasoft Limited file
  2. Right-click the file and select Properties
  3. Click the Digital Signatures tab
  4. Click on the View Certificate button

Here's a screengrab of a file signed by Lavasoft Limited:

Screenshot of the Lavasoft Limited certificate

As you can see in the screencap above, the Windows OS reports that "This digital signature is OK". This implies that the file has been published by Lavasoft Limited and that no one has tampered with the file.

If you click the View Certificate button shown in the screenshot above, you can examine 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 Lavasoft Limited, such as the street name, city and country.

VeriSign Class 3 Code Signing 2010 CA and Symantec Class 3 SHA256 Code Signing CA has issued the Lavasoft Limited certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.

Lavasoft Limited Files

The following are the Lavasoft Limited files I've collected, thanks to the FreeFixer users.

The FreeFixer tool treats files from Lavasoft Limited as safe, which means that the Lavasoft Limited files will appear with a green background and that there's no removal checkbox for the file. However, as you can see in the scan results below, a few of the anti-virus scanners detects the Lavasoft Limited file(s). My guess is that those detections are incorrect and that the files are safe. It's unlikely that Lavasoft Limited would ship a malware file.

Detection RatioFile Name
1/54WebCompanion.exe
4/54lavasofttcpservice.exe
1/57LavasoftTcpService64.dll
7/57LavasoftTcpService.dll
1/48SearchProtection.exe
1/47adawareDx.dll
1/54LavasoftTcpService64.dll
2/56LavasoftTcpService.dll
1/46adawareDx.dll
1/57lavasofttcpservice.exe
1/47adawareDx.dll
2/55adawareDx.dll
2/53LavasoftTcpService64.dll
2/57adawareDx.dll
1/47adawareDx.dll
1/51adawareDx.dll
1/54LavasoftTcpService.dll
1/71lavasoft.wcassistant.winservice.exe
1/49adawareDx.dll
1/50adawaretb.dll
1/53SearchProtection.exe
1/55LavasoftTcpService.dll
1/55LavasoftTcpService.dll
3/56LavasoftTcpService.dll
3/57lavasofttcpservice.exe
2/57LavasoftTcpService.exe
1/57LavasoftTcpService.dll
3/68Lavasoft.WCAssistant.WinService.exe
1/44ThreatWork.exe
1/49adawareDx.dll
2/54LavasoftTcpServiceCert.dll
1/54LavasoftTcpService.dll
7/57LavasoftTcpService.dll
1/57boost_locale-vc120-mt-1_57.dll
0/57LavasoftTcpService64.dll
0/54LavasoftTcpService.dll
0/57LavasoftTcpService.dll
0/57Lavasoft.SearchProtect.WinService.exe

Scanner and Detection Names

Here is the detection names for the Lavasoft Limited files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.

As mentioned above, I think these detections are incorrect since it is very unlikely that Lavasoft Limited would ship a malware file.

ScannerDetection Names
AegisLabVariant.Kazy.mCG2
Antiy-AVLGrayWare[AdWare:not-a-virus]/Win64.Kolorpik, Trojan/Win32.TSGeneric
AvastWin32:Adware-gen [Adw]
AviraADWARE/Adware.Gen7
Baidu-InternationalPUA.Win32.Visicom.bB
ByteHeroTrojan.Malware.Win32.xPack.g
DrWebAdware.Superfish.11, Adware.BGuard.52, Program.Unwanted.4695, Adware.Superfish.9
ESET-NOD32Win32/AdWare.Loadshop.D, a variant of Win32/Komodia.A potentially unsafe, a variant of Win32/Toolbar.Visicom.B, Win64/Adware.Loadshop.C, a variant of Win32/Toolbar.Visicom.B potentially unwanted, a variant of MSIL/WebCompanion.D potentially unwanted, a variant of Win32/Toolbar.Visicom.A, Win32/AdWare.Loadshop.F
FortinetRiskware/Komodia
GridinsoftPUP.Win32.WebCompanion.vb
IkarusPUA.Loadshop
JiangminAdWare/Kolorpik.a
K7AntiVirusUnwanted-Program ( 004b89781 )
K7GWUnwanted-Program ( 004b89781 ), DoS-Trojan ( 200347701 )
Kasperskynot-a-virus:WebToolbar.Win32.Agent.bhe
KingsoftWin32.HeurC.KVM099.a.(kcloud)
NANO-AntivirusTrojan.Win32.Siggen6.dcjafo, Riskware.Win32.Loadshop.dgvoaq, Riskware.Win32.Superfish.dpgdxd, Riskware.Win32.WebProtect.ddycru, Riskware.Win32.WebProtect.dfppal, Riskware.Win32.Superfish.dpfrpb
TrendMicro-HouseCallSuspicious_GEN.F47V0317, Suspicious_GEN.F47V1228, Suspicious_GEN.F47V0126, Suspicious_GEN.F47V1217, Suspicious_GEN.F47V0127
ZillyaAdware.Loadshop.Win32.1, Adware.Komodia.Win32.1

* How the Detection Percentage is Calculated

The detection percentage is based on that I have collected 9956 scan results for the Lavasoft Limited files. 61 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 has been done on certificates with the following serial numbers:

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