Storimbo - 13% Detection Rate *

Did you just run into a download or a file on your computer that has been digitally signed by Storimbo? Some of the security products refers to the detected files as MalSign.Storimbo.B78 and PUP.Optional.Storimbo.A. The detection rate for the Storimbo files collected here is 13%. Please read on for more details.

You will probably see Storimbo 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 Storimbo appears as the verified publisher in the UAC dialog

You can view the additional details from the Storimbo digital signature with the following steps:

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

Here's a screengrab of a file digitally signed by Storimbo:

Screenshot of the Storimbo certificate

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This means that the file has been published by Storimbo and that the file has not been tampered with.

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

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

Storimbo Files

These are the Storimbo files I have gathered, thanks to the FreeFixer users.

Detection RatioFile Name
4/48StorimboSetup.exe
4/35updateStorimbo.exe
1/47Storimbo.FFUpdate.dll
17/47Storimbobho.dll
2/47utilStorimbo.exe

Scanner and Detection Names

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

ScannerDetection Names
AVGMalSign.Storimbo.B78
Antiy-AVLAdWare/Win32.Agent
AvastWin32:Malware-gen
ComodoApplication.Win32.Altbrowse.AK
DrWebTrojan.DownLoad3.30841, Adware.Plugin.100
ESET-NOD32a variant of Win32/BrowseFox.G, a variant of Win32/BrowseFox.F
FortinetAdware/Agent
GDataWin32.Trojan.Agent.VWHYOV
Ikarusnot-a-virus:AdWare.Win32.Agent
JiangminAdware/Agent.izz
K7AntiVirusUnwanted-Program ( 00454f261 )
K7GWUnwanted-Program ( 00454f261 )
Kasperskynot-a-virus:AdWare.Win32.Agent.ahbx
KingsoftWin32.Troj.Agent.ah.(kcloud)
MalwarebytesPUP.Optional.Storimbo.A
NANO-AntivirusRiskware.Win32.Agent.cqsznp
RisingNS:PUF.SilenceInstaller!1.9DDF
SophosGeneric PUA DI
TrendMicro-HouseCallTROJ_GEN.F47V1218
VBA32AdWare.Agent

* How the Detection Percentage is Calculated

The detection percentage is based on that I have collected 224 scan reports for the Storimbo files. 28 of these scan results came up with some sort of detection. You can review 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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