trezaa.com - 5% Detection Rate *

Did you just run into a download or a file on your computer that is digitally signed by trezaa.com? Some of the security products refers to the detected files as Gen:Variant.Adware.Sendori.1 and PUP.Optional.Trezaa. The detection rate for the trezaa.com files collected here is 5%. Please read on for more details.

You will probably notice trezaa.com when clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

Screenshot where trezaa.com appears as the verified publisher in the UAC dialog

You can view the additional details from the trezaa.com digital signature with the following steps:

  1. Open up Windows Explorer and locate the trezaa.com 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 trezaa.com:

Screenshot of the trezaa.com certificate

As you can see in the screenshot above, Windows states that "This digital signature is OK". This means that the file has been published by trezaa.com 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 trezaa.com, such as the street name, city and country.

Symantec Class 3 SHA256 Code Signing CA has issued the trezaa.com certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screencap above.

trezaa.com Files

The following are the trezaa.com files I have gathered, thanks to the FreeFixer users.

Detection RatioFile Name
1/54Trezaa.Scheduler.exe
1/56Trezaa.Scheduler.exe
1/57Trezaa.Service.exe
17/66Trezaa.Updater.exe
0/57Trezaa.Scheduler.exe
0/52TBD14AD.tmp
0/54Trezaa.Service.exe

Scanner and Detection Names

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

ScannerDetection Names
ALYacGen:Variant.Adware.Sendori.1
AVwareSendori (fs)
Ad-AwareGen:Variant.Adware.Sendori.1
ArcabitTrojan.Adware.Sendori.1
BitDefenderGen:Variant.Adware.Sendori.1
ESET-NOD32a variant of MSIL/Adware.Sendori.B
EmsisoftGen:Variant.Adware.Sendori.1 (B)
F-SecureGen:Variant.Adware.Sendori
GDataGen:Variant.Adware.Sendori.1
MAXmalware (ai score=68)
MalwarebytesPUP.Optional.Trezaa
MicroWorld-eScanGen:Variant.Adware.Sendori.1
RisingPE:Trojan.BrowseFox!1.A1FD[F1]
SUPERAntiSpywarePUP.Sendori/Variant
TrendMicroADW_ADPOPUP
TrendMicro-HouseCallADW_ADPOPUP
VIPRESendori (fs) (not malicious)
WebrootPua.Sendori
ZillyaDownloader.IFrameCRTD.Win32.7073

* How the Detection Percentage is Calculated

The detection percentage is based on the fact that I've gathered 396 scan results for the trezaa.com files. 20 of these scan reports came up with some sort of detection. You can review the full details of the scan results by examining the files listed above.

Analysis Details

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

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