?????????? - 18% Detection Rate *
Did you just run into a download or a file on your computer that is digitally signed by ??????????? Some of the security products refers to the detected files as Win32.Application.GuaGua.A and Trojan.Gen.2. The detection rate for the ?????????? files collected here is 18%. Please read on for more details.
You will probably see ?????????? when clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screencap shows:
You can also view the ?????????? certificate with the following procedure:
- Open Windows Explorer and locate the ?????????? file
- Right-click on the file and select Properties
- Click on the Digital Signatures tab
- Click the View Certificate button
Here is a screenshot of a file signed by ??????????:
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 ?????????? 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 see the address for ??????????, such as the street name, city and country.
WoSign Class 3 Code Signing CA and GlobalSign Extended Validation CodeSigning CA - SHA256 - G2 has issued the ?????????? certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
?????????? Files
The following are the ?????????? files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 19/54 | girlshow_20034046209.exe |
| 2/55 | chrome.exe |
| 33/57 | girlshow_20020074885.exe |
| 25/50 | guagua_20780014227.exe |
| 32/58 | kele_0.exe |
| 32/58 | qixi_20080049354.exe |
| 50/67 | pingguo_0.exe |
| 2/56 | rysservice.exe |
| 1/55 | browserServer.exe |
| 4/56 | browserServer.exe |
| 0/55 | RYSIEHelper64.dll |
Scanner and Detection Names
Here's the detection names for the ?????????? files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Adware.GenericKD.30725193 |
| AVG | Generic_r.ATN, Generic_s.FD, Win32:Adware-gen [Adw] |
| AVware | Trojan.Win32.Generic.pak!cobra, Trojan.Win32.Generic!BT |
| Ad-Aware | Adware.GenericKD.30725193 |
| AegisLab | Troj.W32.Gen, W32.Application.Guagua!c, W32.Sality |
| Agnitum | Riskware.GuaGua! |
| AhnLab-V3 | PUP/Win32.Downloader.C880528 |
| Antiy-AVL | GrayWare[Porn-Tool]/Win32.GuaGua.y, GrayWare[Adware]/Win32.GuaGua.a, Trojan/Win32.TSGeneric |
| Arcabit | Adware.Generic.D1D4D449, Trojan.Adware.Ghoskwa.1 |
| Avast | Win32:Adware-gen [Adw] |
| Avira | TR/AD.Hadsruda.mnqkd |
| Baidu-International | PUA.Win32.Bang5mai.A |
| BitDefender | Adware.GenericKD.30725193 |
| Bkav | W32.FamVT.GuagNHm.Trojan, W32.Clode39.Trojan.48fc, W32.Clodf73.Trojan.3381, W32.Clod88b.Trojan.ff04 |
| CAT-QuickHeal | Program.Hadsruda.g4 (Not a Virus), Program.Hadsruda |
| ClamAV | Win.Trojan.Generic-5415795-0 |
| Comodo | ApplicUnwnt.Win32.PornTool.GuaGua.A |
| CrowdStrike | malicious_confidence_60% (D) |
| Cyren | W32/S-22ef43a1!Eldorado, W32/S-ca1b5162!Eldorado, W32/S-94c424df!Eldorado |
| DrWeb | Adware.Downware.9422, Adware.Downware.10691 |
| ESET-NOD32 | a variant of Win32/PornTool.GuaGua.A potentially unsafe, a variant of Win32/GuaGua.C potentially unwanted, a variant of Win32/Bang5mai.A potentially unwanted |
| Emsisoft | Application.PornTool (A) |
| Endgame | malicious (high confidence) |
| F-Prot | W32/S-22ef43a1!Eldorado, W32/S-94c424df!Eldorado |
| F-Secure | Adware.GenericKD.30725193 |
| Fortinet | Riskware/GuaGua, Riskware/PornTool_GuaGua |
| GData | Win32.Application.GuaGua.A |
| Ikarus | not-a-virus:Porn-Tool.Win32.GuaGua, Trojan.Win32.Ghokswa, PUA.Agent, PUA.PornTool.Guagua |
| Invincea | virus.win32.sality.at, heuristic |
| Jiangmin | Porn-Tool.GuaGua.a |
| K7AntiVirus | Unwanted-Program ( 004b9d761 ), Unwanted-Program ( 004bae261 ), Unwanted-Program ( 004d42d11 ) |
| K7GW | Unwanted-Program ( 004b9d761 ), Unwanted-Program ( 004bae261 ), Unwanted-Program ( 004d42d11 ) |
| Kaspersky | not-a-virus:Porn-Tool.Win32.GuaGua.y |
| Kingsoft | Win32.ADWARE.Advert.ac.(kcloud) |
| MAX | malware (ai score=100) |
| Malwarebytes | PornTool.GuaGua, Adware.Agent |
| McAfee | Artemis!BF90803B5B17, PUP-XAA-VW, PUP-XAA-ZX, GuaGua-FRN |
| McAfee-GW-Edition | BehavesLike.Win32.PUP.tc, PUP-XAA-VW, PUP-XAA-ZX, GuaGua-FRN |
| MicroWorld-eScan | Adware.GenericKD.30725193 |
| Microsoft | Trojan:Win32/Ghokswa, Program:Win32/Hadsruda!bit, PUA:Win32/GuaGua |
| NANO-Antivirus | Riskware.Win32.Downware.edkapc, Riskware.Win32.PornTool.ekaxrs |
| Paloalto | generic.ml |
| Panda | Generic Suspicious, Trj/CI.A, Trj/Genetic.gen |
| Rising | Malware.Generic!2zuPffY5NEB@5 (thunder) |
| SUPERAntiSpyware | Trojan.Agent/Gen-PornTool, Adware.Guagua/Variant |
| SentinelOne | static engine - malicious |
| Sophos | Generic PUA ID (PUA), Generic PUA DI (PUA), Generic PUA CB (PUA), Generic PUA OH (PUA), Generic PUA LB (PUA), Generic PUA IG (PUA) |
| Symantec | Trojan.Gen.2 |
| TrendMicro | TROJ_FRS.0NA004B816, TROJ_GEN.R0EBC0OFJ16, TROJ_GEN.R0EBC0OFH16, TROJ_GEN.R0EBC0OFN16, PUA_PornTool |
| TrendMicro-HouseCall | TROJ_FRS.0NA004B816, TROJ_GEN.R0EBC0OFJ16, TROJ_GEN.R0EBC0OFN16, PUA_PornTool |
| VBA32 | BScope.Adware.Downware |
| VIPRE | Trojan.Win32.Generic.pak!cobra, Trojan.Win32.Generic!BT |
| ViRobot | Adware.Guagua.1068648.A[h], Adware.Guagua.1314400[h], Adware.PornTool.1330792.A[h], Adware.PornTool.1330792.B[h], Adware.PornTool.1330792 |
| Webroot | Adware.Gen |
| Yandex | Riskware.GuaGua! |
| Zillya | Tool.GuaGua.Win32.15, Tool.GuaGua.Win32.17, Tool.GuaGua.Win32.13, Tool.GuaGua.Win32.10 |
| Zoner | Trojan.Application |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I've gathered 2042 scan reports for the ?????????? files. 375 of these scan results came up with some sort of detection. If you like, 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:
- 443673f62c8d81952b12368e02d3c6b7
- 112111890b77b0fdf98eb0b3cfdea89b989c
- 4726a3e4f4bc6a0d6accaa9d2e352c87