Did you just stumble upon a download or a file on your computer that has a digital signature from TINY INSTALLER? Some of the security products refers to the detected files as iBryte Optimum Installer and Win32.Troj.Generic.a.(kcloud). The detection rate for the TINY INSTALLER files collected here is 7%. Please read on for more details.
You'll typically notice TINY INSTALLER when clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screencap shows:
You can view additional details from the TINY INSTALLER certificate with the following steps:
Here is a screenshot of a file signed by TINY INSTALLER:
As you can see in the screengrab above, Windows reports that "This digital signature is OK". This means that the file has been published by TINY INSTALLER and that the file has not been tampered with.
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, and so on. You can also examine the address for TINY INSTALLER, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the TINY INSTALLER certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the TINY INSTALLER files I've gathered, thanks to the FreeFixer users.
Detection Ratio | File Name |
---|---|
6/48 | Express_Installer.exe |
6/47 | Setup.exe |
8/47 | Setup.exe |
5/47 | Express_Installer[1].exe |
5/45 | Express_Installer.exe |
Here's the detection names for the TINY INSTALLER files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
Scanner | Detection Names |
---|---|
AVG | Crypt2.BNYQ |
Agnitum | Trojan.Buzus!j0V9gDGL/aQ |
Comodo | TrojWare.Win32.Kryptik.BLXE |
DrWeb | Adware.Downware.1554, Adware.Downware.1532 |
ESET-NOD32 | a variant of Win32/Kryptik.BLXE, a variant of Win32/AdWare.iBryte.I.gen |
Fortinet | W32/Kryptik.BLXE!tr |
Kingsoft | Win32.Troj.Generic.a.(kcloud) |
Malwarebytes | PUP.Optional.iBryte, PUP.Optional.ExpressInstall.A |
Sophos | iBryte Optimum Installer |
VIPRE | Optimum Installer (fs) |
The detection percentage is based on the fact that I have gathered 401 scan reports for the TINY INSTALLER files. 30 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.
The analysis is based on certificates with the following serial numbers:
I just found Tiny installer in my user folder named .wdc/logs. I never go online with this PC so how it got here is a mystery. Thanks for the info, it was very helpful.
# 9 Jul 2020, 9:58
Mask writes