Bizzybolt - 11% Detection Rate *

Did you just run into a download or a file on your computer that has a digital signature from Bizzybolt? Some of the security products refers to the detected files as Riskware.Win32.Agent.crkvek and PUP.Optional.Bizzybolt.A. The detection rate for the Bizzybolt files collected here is 11%. Please read on for more details.

You will typically notice Bizzybolt when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

Screenshot where Bizzybolt appears as the verified publisher in the UAC dialog

You can view the additional details from the Bizzybolt digital signature with the following procedure:

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

Here's a screenshot of a file signed by Bizzybolt:

Screenshot of the Bizzybolt certificate

As you can see in the screengrab above, the Windows OS states that "This digital signature is OK". This means that the file has been published by Bizzybolt and that the file has not been tampered with.

If you click the View Certificate button shown in the screenshot 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 Bizzybolt, such as the street name, city and country.

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

Bizzybolt Files

The following are the Bizzybolt files I have collected, thanks to the FreeFixer users.

Detection RatioFile Name
11/47Bizzyboltbho.dll
11/50BizzyboltBHO.dll
5/53{1007bb60-cbfa-4fb2-991d-e8357416f5fb}w64.sys

Scanner and Detection Names

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

ScannerDetection Names
AVGBibolt
Baidu-InternationalAdware.Win32.BrowseFox.BG
ComodoApplication.Win32.Altbrowse.AK
DrWebAdware.Plugin.100
ESET-NOD32a variant of Win32/BrowseFox.F
FortinetAdware/Agent
Ikarusnot-a-virus:AdWare.Win32.Agent, AdWare.BatBrowse, AdWare.SpadeCast
Kasperskynot-a-virus:AdWare.Win32.Agent.ahbx
KingsoftWin32.Troj.Agent.ah.(kcloud)
MalwarebytesPUP.Optional.Bizzybolt.A
NANO-AntivirusRiskware.Win32.Agent.crkvek
SophosGeneric PUA IC, Generic PUA ON, BrowseSmart
TrendMicro-HouseCallTROJ_GEN.F47V1202
VBA32AdWare.Agent
VIPRETrojan.Win32.Generic!BT

* How the Detection Percentage is Calculated

The detection percentage is based on that I have collected 251 scan results for the Bizzybolt files. 27 of these scan reports came up with some sort of detection. If you like, you can view the full details of the scan results by examining the files listed above.

Analysis Details

The analysis is done on certificates with the following serial numbers:

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