Ad Support - 6% Detection Rate *
Did you just stumble upon a download or a file on your computer that is digitally signed by Ad Support? Some of the security products refers to the detected files as Trojan.GenericKD.2138989 and Gen:Variant.Graftor.174811. The detection rate for the Ad Support files collected here is 6%. Please read on for more details.
You will probably notice Ad Support when clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can also view the Ad Support certificate with the following procedure:
- Open up Windows Explorer and locate the Ad Support file
- Right-click the file and select Properties
- Click on the Digital Signatures tab
- Click on the View Certificate button
Here is a screenshot of a file digitally signed by Ad Support:
As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by Ad Support and that the file has not been tampered with.
If you click the View Certificate button shown in the screencap 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, etc. You can also view the address for Ad Support, such as the street name, city and country.
AdSupport has issued the Ad Support certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
Ad Support Files
The following are the Ad Support files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 29/56 | compatibilitychecksvc.exe |
| 22/56 | compatibilitychecksvc.exe |
| 6/54 | compatibilitychecksvc.exe |
| 1/56 | ffmpegsumo.dll |
| 4/56 | compatibilitychecksvc.exe |
| 1/56 | ffmpegsumo.dll |
| 5/57 | libGLESv2.dll |
| 0/56 | compatibilitychecksvc.exe |
Scanner and Detection Names
Here's the detection names for the Ad Support files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Trojan.GenericKD.2138989 |
| AVG | AdSupr.38C |
| AVware | Trojan.Win32.Generic!BT |
| Ad-Aware | Trojan.GenericKD.2138989, Gen:Variant.Graftor.174811 |
| Agnitum | Trojan.AdSuproot! |
| Avast | Win32:Malware-gen |
| Avira | Adware/AdSuproot.99496, ADWARE/Adware.Gen7 |
| Baidu-International | PUA.Win32.AdSuproot.81, Trojan.Win32.AdSuproot.C |
| BitDefender | Trojan.GenericKD.2138989, Gen:Variant.Graftor.174811 |
| Bkav | W32.RustirdosLTU.Trojan, W32.HfsAdware.B8DE |
| Comodo | UnclassifiedMalware |
| Cyren | W32/Adware.IAQV-3890, W32/Spyware-WebActiveClick-base |
| ESET-NOD32 | a variant of Win32/AdSuproot.A, a variant of Win32/AdSuproot.C, a variant of Win32/AdSuproot |
| Emsisoft | Trojan.GenericKD.2138989 (B), Gen:Variant.Graftor.174811 (B) |
| F-Prot | W32/Spyware-WebActiveClick-base |
| F-Secure | Trojan.GenericKD.2138989, Gen:Variant.Graftor.174811 |
| Fortinet | W32/AdSuproot.A!tr, W32/Ad_Support.C!tr |
| GData | Trojan.GenericKD.2138989, Gen:Variant.Graftor.174811, Win32.Trojan.Agent.LQWEY9 |
| Ikarus | Trojan.Win32.AdSuproot |
| K7AntiVirus | Unwanted-Program ( 004a8e8a1 ), Trojan ( 004be3f51 ) |
| K7GW | DoS-Trojan ( 200f722a1 ), Trojan ( 004be3f51 ) |
| McAfee | BackDoor-FCKT!7143B9E08092, BackDoor-FCKT!13F3E4ECED43, BackDoor-FCKT!C86AF2C00EE6 |
| McAfee-GW-Edition | BackDoor-FCKT!7143B9E08092, BackDoor-FCKT!13F3E4ECED43, BackDoor-FCKT!C86AF2C00EE6 |
| MicroWorld-eScan | Trojan.GenericKD.2138989, Gen:Variant.Graftor.174811 |
| NANO-Antivirus | Riskware.Win32.AdSuproot.dnjyrl |
| Norman | Suspicious_Gen4.HTVCT |
| Panda | Trj/CI.A |
| Qihoo-360 | Win32/Virus.Adware.31d |
| Sophos | Ad Support |
| Symantec | WS.Reputation.1, Trojan.Gen.2 |
| Tencent | Win32.Trojan.Falsesign.Dztz |
| TrendMicro-HouseCall | TROJ_GEN.R0C1H06B215, TROJ_GEN.R0C1H06DL15, Suspicious_GEN.F47V1219, Suspicious_GEN.F47V1229 |
| VIPRE | Trojan.Win32.Generic!BT |
| Zillya | Trojan.AdSuproot.Win32.1 |
| nProtect | Trojan.GenericKD.2138989 |
* How the Detection Percentage is Calculated
The detection percentage is based on that I've collected 1230 scan results for the Ad Support files. 68 of these scan reports came up with some sort of detection. You can view 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:
- 00e592a6d69afa75af