NetCrawl - 25% Detection Rate *
Did you just stumble upon a download or a file on your computer that has been digitally signed by NetCrawl? Some of the security products refers to the detected files as NetCrawl.3AE and Adware.Win32.BrowseFox.bG. The detection rate for the NetCrawl files collected here is 25%. Please read on for more details.
You will typically see NetCrawl when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view the digital signature details for NetCrawl with the following steps:
- Open up Windows Explorer and locate the NetCrawl file
- Right-click the file and select Properties
- Click on the Digital Signatures tab
- Click on the View Certificate button
Here's a screenshot of a file digitally signed by NetCrawl:
As you can see in the screenshot above, Windows reports that "This digital signature is OK". This means that the file has been published by NetCrawl 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, and so on. You can also see the address for NetCrawl, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the NetCrawl certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
NetCrawl Files
These are the NetCrawl files I've gathered, thanks to the FreeFixer users.
Scanner and Detection Names
Here's the detection names for the NetCrawl files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVG | Generic_r.KI, NetCrawl.3AE, BrowseFox.A, BrowseFox.F |
| AVware | Trojan.Win32.Generic!BT |
| Ad-Aware | Adware.Agent.OBZ, Adware.SwiftBrowse.P, Adware.SwiftBrowse.AQ, Gen:Variant.Adware.BHO.Agent.4, Adware.NetFilter.E |
| Agnitum | PUA.LinkSwift!, Trojan.BPlug! |
| AhnLab-V3 | PUP/Win32.Downloader, Trojan/Win64.SwiftBrowse |
| AntiVir | APPL/BrowseFox.Gen2 |
| Antiy-AVL | GrayWare[AdWare:not-a-virus]/Win32.LinkSwift, Trojan/Win32.TSGeneric |
| Avast | Win32:BrowseFox-CH [PUP] |
| Baidu-International | Adware.Win32.BrowseFox.BJ, Adware.Win32.BrowseFox.bG, Adware.Win64.BrowseFox.bA, Adware.Win32.BrowseFox.bH, Adware.Win32.Agent.Af |
| BitDefender | Adware.Agent.OBZ, Adware.SwiftBrowse.P, Adware.SwiftBrowse.AQ, Gen:Variant.Adware.BHO.Agent.4, Adware.NetFilter.E |
| ClamAV | Win.Adware.Agent-6584, Win.Adware.Swiftbrowse-2, Win.Adware.Swiftbrowse-75 |
| Comodo | Application.Win32.Altbrowse.AK, UnclassifiedMalware |
| DrWeb | Trojan.BPlug.47, Trojan.BPlug.123, Trojan.BPlug.91, Trojan.BPlug.28, Trojan.BPlug.117 |
| ESET-NOD32 | a variant of Win32/BrowseFox.J, a variant of Win64/BrowseFox.A, a variant of Win32/BrowseFox.H, a variant of Win32/BrowseFox.F, a variant of Win64/Riskware.NetFilter.F |
| Emsisoft | Adware.Agent.OBZ (B), Adware.SwiftBrowse.P (B), Adware.SwiftBrowse.AQ (B), Gen:Variant.Adware.BHO.Agent.4 (B), Adware.NetFilter.E (B) |
| F-Prot | W64/A-e967bae2!Eldorado |
| F-Secure | Adware.Agent.OBZ, Adware.SwiftBrowse.P, Adware.SwiftBrowse.AQ, Gen:Variant.Adware.BHO.Agent.4, Adware.NetFilter.E |
| Fortinet | Adware/Agent |
| GData | Adware.Agent.OBZ, Adware.SwiftBrowse.P, Adware.SwiftBrowse.AQ, Gen:Variant.Adware.BHO.Agent.4, Adware.NetFilter.E |
| Ikarus | AdWare.LinkSwift, AdWare.SpadeCast, AdWare.BrowseFox, AdWare.SwiftBrowse |
| Jiangmin | AdWare/LinkSwift.di, AdWare/Yotoon.m, AdWare/LinkSwift.bl, Adware/Agent.izz |
| K7AntiVirus | Riskware ( 0049c6851 ) |
| K7GW | Trojan ( 050000001 ), Riskware ( 0049c6851 ) |
| Kaspersky | not-a-virus:AdWare.Win32.Agent.ahbx |
| Kingsoft | Win32.Troj.Agent.ah.(kcloud) |
| Malwarebytes | PUP.Optional.NetCrawl.A |
| McAfee | Artemis!A50A086D4663, Artemis!71123427E7AC, Artemis!3E1B250890E2, Artemis!C332544F2033, Artemis!B14A72D19F46, Artemis!83EACE2BFCA3, Artemis!282BF6DF3E25 |
| McAfee-GW-Edition | Heuristic.LooksLike.Win32.Suspicious.I, Artemis!A50A086D4663, Artemis!71123427E7AC, Artemis!3E1B250890E2, Artemis!C332544F2033, Artemis!B14A72D19F46, Artemis, Artemis!PUP |
| MicroWorld-eScan | Adware.Agent.OBZ, Adware.SwiftBrowse.P, Adware.SwiftBrowse.AQ, Gen:Variant.Adware.BHO.Agent.4, Adware.NetFilter.E |
| NANO-Antivirus | Riskware.Win32.Agent.cuenda, Trojan.Win32.BPlug.dcxxfx |
| Panda | Trj/CI.A |
| Qihoo-360 | HEUR/Malware.QVM10.Gen, HEUR/Malware.QVM30.Gen |
| Rising | PE:Trojan.Win32.Generic.17876965!394750309 |
| SUPERAntiSpyware | Adware.BrowseFox/Variant |
| Sophos | BrowseSmart, Generic PUA MO |
| Symantec | Yontoo.C |
| TrendMicro | TROJ_SPNV.03I914 |
| TrendMicro-HouseCall | Suspicious_GEN.F47V0623, Suspicious_GEN.F47V0630, Suspicious_GEN.F47V0628, Suspicious_GEN.F47V0705, Suspicious_GEN.F47V0709, Suspicious_GEN.F47V0711, TROJ_SPNV.03I914 |
| VBA32 | AdWare.Agent, AdWare.Win64.Yotoon |
| VIPRE | Trojan.Win32.Generic!BT, Yontoo (fs) |
| Zillya | Adware.SwiftBrowse.Win32.2, Adware.LinkSwift.Win32.22, Adware.Agent.Win32.9549, Adware.Yotoon.Win64.3 |
| nProtect | Adware.Agent.OBZ, Adware.SwiftBrowse.P, Adware.NetFilter.E |
* How the Detection Percentage is Calculated
The detection percentage is based on that I've gathered 1986 scan results for the NetCrawl files. 500 of these scan reports 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 done on certificates with the following serial numbers:
- 3c05f8d25eb72cd5b6eb863aa0585f70