Extended Setup - 49% Detection Rate *
Did you just stumble upon a download or a file on your computer that has been digitally signed by Extended Setup? Some of the security products refers to the detected files as InstallCore (fs) and W32/A-42c63c6c!Eldorado. The detection rate for the Extended Setup files collected here is 49%. Please read on for more details.
You will typically notice Extended Setup when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view additional details from the Extended Setup certificate with the following procedure:
- Open Windows Explorer and locate the Extended Setup file
- Right-click on the file and select Properties
- Click the Digital Signatures tab
- Click on the View Certificate button
Here is a screencap of a file that has been signed by Extended Setup:
As you can see in the screencap above, Windows states that "This digital signature is OK". This implies that the file has been published by Extended Setup 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 Extended Setup, such as the street name, city and country.
COMODO Code Signing CA 2 has issued the Extended Setup certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
Extended Setup Files
The following are the Extended Setup files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 33/68 | videoDownloader_Extended_setup_signed.exe |
Scanner and Detection Names
Here is the detection names for the Extended Setup files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVware | InstallCore (fs) |
| Avira | PUA/InstallCore.Gen7 |
| Baidu | Win32.Adware.InstallCore.a |
| Bkav | W32.HfsAdware.FE98 |
| CAT-QuickHeal | PUA.Extendedse.Gen |
| Comodo | ApplicUnwnt |
| CrowdStrike | malicious_confidence_100% (D) |
| Cybereason | malicious.bec921 |
| Cylance | Unsafe |
| Cyren | W32/A-42c63c6c!Eldorado |
| DrWeb | Trojan.Packed2.39625 |
| ESET-NOD32 | a variant of Win32/InstallCore.BX potentially unwanted |
| Emsisoft | Application.InstallCore (A) |
| Endgame | malicious (high confidence) |
| F-Prot | W32/A-42c63c6c!Eldorado |
| GData | Win32.Application.InstallCore.HF |
| Invincea | heuristic |
| K7AntiVirus | Adware ( 004d4b471 ) |
| K7GW | Adware ( 004d4b471 ) |
| MAX | malware (ai score=96) |
| McAfee | Artemis!9BA1189E59D2 |
| McAfee-GW-Edition | BehavesLike.Win32.CryptInno.bc |
| Microsoft | PUA:Win32/InstallCore |
| Qihoo-360 | Win32/Virus.Adware.94c |
| SUPERAntiSpyware | PUP.InstallCore/Variant |
| SentinelOne | static engine - malicious |
| Sophos | Install Core Click run software (PUA) |
| Symantec | Trojan.ADH.2 |
| TotalDefense | Win32/InstallCore.A!generic |
| VBA32 | Downware.InstallCore |
| VIPRE | InstallCore (fs) |
| Webroot | Adware.Installcore |
| Zillya | Trojan.PackedCRTD.Win32.422 |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I've collected 68 scan reports for the Extended Setup files. 33 of these scan results came up with some sort of detection. If you like, you can view the full details of the scan reports by examining the files listed above.
Analysis Details
The analysis is based on certificates with the following serial numbers:
- 00dc2a1d7b17450e779685baa191188498