Download Manager - 28% Detection Rate *
Did you just find a download or a file on your computer that has been digitally signed by Download Manager? Some of the security products refers to the detected files as Gen:Variant.Adware.Graftor.163396 and Gen:Variant.Adware.Graftor.153852. The detection rate for the Download Manager files collected here is 28%. Please read on for more details.
You will typically see Download Manager when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view additional details from the Download Manager certificate with the following steps:
- Open Windows Explorer and locate the Download Manager file
- Right-click the file and select Properties
- Click the Digital Signatures tab
- Click the View Certificate button
Here is a screenshot of a file that has been digitally signed by Download Manager:
As you can see in the screencap above, the Windows OS reports that "This digital signature is OK". This implies that the file has been published by Download Manager and that the file has not been tampered with.
If you click the View Certificate button shown in the screencap above, you can see 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 see the address for Download Manager, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA and COMODO Code Signing CA 2 has issued the Download Manager certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screengrab above.
Download Manager Files
These are the Download Manager files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 41/55 | hd-player.exe |
| 1/50 | Product Support.dll |
| 7/51 | SoftwareUpdate.exe |
| 16/55 | setup.exe |
| 24/57 | Setup.exe |
Scanner and Detection Names
Here's the detection names for the Download Manager files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Gen:Variant.Adware.Graftor.163396, Gen:Variant.Symmi.49926 |
| AVG | Generic.E84, Generic_r.JE |
| AVware | Iminent (fs), AirInstaller (fs) |
| Ad-Aware | Gen:Variant.Adware.Graftor.163396, Gen:Variant.Adware.Graftor.153852 |
| AegisLab | AdWare.W32.AirAdInstaller |
| Agnitum | PUA.AirAd! |
| AhnLab-V3 | PUP/Win32.Installer |
| AntiVir | ADWARE/Adware.Gen |
| Antiy-AVL | GrayWare[AdWare:not-a-virus]/Win32.AirAdInstaller |
| Arcabit | Trojan.Adware.Graftor.D27E44 |
| Avast | Win32:Adware-CJY [PUP], Win32:Malware-gen |
| Avira | ADWARE/Adware.Gen, ADWARE/Adware.Gen7 |
| Baidu-International | Adware.Win32.AirAdInstaller.bA |
| BitDefender | Gen:Variant.Adware.Graftor.163396, Gen:Variant.Adware.Graftor.153852, Gen:Variant.Symmi.49926 |
| Bkav | W32.HfsAdware.FBA8 |
| CAT-QuickHeal | PUA.Downloadma.Gen |
| ClamAV | Win.Adware.Graftor-464 |
| Comodo | Application.Win32.AirAdInstaller.C, Packed.Win32.MUPX.Gen |
| Cyren | W32/A-a607985a!Eldorado |
| DrWeb | Adware.Downware.11042, Trojan.SMSSend.4860, Trojan.SMSSend.5439 |
| ESET-NOD32 | a variant of Win32/AirAdInstaller.A potentially unwanted, a variant of Win32/AirAdInstaller.A, a variant of Win32/AirAdInstaller.E |
| Emsisoft | Gen:Variant.Adware.Graftor.163396 (B), Gen:Variant.Adware.Graftor.153852 (B), Gen:Variant.Symmi.49926 (B) |
| F-Prot | W32/A-a607985a!Eldorado |
| F-Secure | Gen:Variant.Adware.Graftor, Gen:Variant.Adware.Graftor.153852, Gen:Variant.Symmi.49926 |
| GData | Gen:Variant.Adware.Graftor.163396, Gen:Variant.Adware.Graftor.153852, Gen:Variant.Symmi.49926 |
| Ikarus | PUA.AirAdInstaller, AdWare.AirAdInstaller |
| Jiangmin | AdWare.Generic.akea, AdWare/AirAdInstaller.sk |
| K7AntiVirus | Unwanted-Program ( 0040f9231 ), Unwanted-Program ( 004b330c1 ) |
| K7GW | Unwanted-Program ( 0040f9231 ), Unwanted-Program ( 004b330c1 ) |
| Kaspersky | not-a-virus:AdWare.Win32.AirAdInstaller.hfkg, not-a-virus:AdWare.Win32.AirAdInstaller.gzxj |
| Malwarebytes | PUP.Optional.AirInstaller, PUP.Optional.AirAdInstaller |
| McAfee-GW-Edition | BehavesLike.Win32.PolyPatch.dc |
| MicroWorld-eScan | Gen:Variant.Adware.Graftor.163396, Gen:Variant.Adware.Graftor.153852, Gen:Variant.Symmi.49926 |
| NANO-Antivirus | Riskware.Win32.AirAdInstaller.dogsvx, Riskware.Win32.AirAdInstaller.dmhqgb |
| Panda | Trj/Genetic.gen |
| Qihoo-360 | QVM11.1.Malware.Gen |
| Rising | PE:PUF.Airinstall!1.9C4C [F], PE:PUF.Airinstall!1.9C4C |
| Sophos | Generic PUA HE (PUA) |
| Symantec | SAPE.AirAdInstllr.2, WS.Reputation.1 |
| TotalDefense | Win32/AirInstaller.KYQNSXC |
| VBA32 | AdWare.AirAdInstaller |
| VIPRE | Iminent (fs), AirInstaller (fs) |
| Zillya | Adware.AirAdInstaller.Win32.680, Adware.AirAdInstaller.Win32.785 |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I have collected 318 scan reports for the Download Manager files. 89 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 has been done on certificates with the following serial numbers:
- 6771a39c2739af7082c1c8d8234bb168
- 19777bc7489d8203801d05ace10dbeac
- 428e8b7c1ac548d083f4d3a0c5fdaf4c