Opera Software ASA - 0.127% Detection Rate *
Did you just stumble upon a file that is digitally signed by Opera Software ASA? If that's the case, please read on.
You will probably see Opera Software ASA when double-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 Opera Software ASA certificate with the following procedure:
- Open Windows Explorer and locate the Opera Software ASA file
- Right-click on the file and select Properties
- Click the Digital Signatures tab
- Click the View Certificate button
Here's a screenshot of a file that has been signed by Opera Software ASA:
As you can see in the screenshot above, Windows states that "This digital signature is OK". This means that the file has been published by Opera Software ASA and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot 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, etc. You can also view the address for Opera Software ASA, such as the street name, city and country.
VeriSign Class 3 Code Signing 2009-2 CA, Symantec Class 3 Extended Validation Code Signing CA, VeriSign Class 3 Code Signing 2010 CA and DigiCert EV Code Signing CA (SHA2) has issued the Opera Software ASA certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screencap above.
Opera Software ASA Files
These are the Opera Software ASA files I have collected, thanks to the FreeFixer users.
The FreeFixer tool treats files from Opera Software ASA as safe, which means that the Opera Software ASA files will appear with a green background and that there is no removal checkbox for the file. However, as you can see in the scan results below, a few of the anti-virus scanners detects the Opera Software ASA file(s). I'm pretty sure those detections are false positives and that the files are safe. It is unlikely that Opera Software ASA would ship a malware file.
| Detection Ratio | File Name |
|---|---|
| 1/47 | opera_plugin_wrapper.exe |
| 1/57 | launcher.exe |
| 1/57 | installer.exe |
| 1/48 | opera_crashreporter.exe |
| 1/54 | libglesv2.dll |
| 1/54 | 16F003FA_stp.EXE |
| 1/50 | opera.exe |
| 1/54 | opera_crashreporter.exe |
| 1/55 | opera_crashreporter.exe |
| 1/57 | 1_Offer_9.exe |
| 1/56 | Opera_NI_stable.exe |
| 0/54 | Opera_NI_stable.exe |
| 0/56 | opera_autoupdate.exe |
| 0/57 | opera.exe |
| 0/56 | opera.exe |
| 0/56 | launcher.exe |
| 0/57 | launcher.exe |
| 0/57 | launcher.exe |
| 0/56 | opera.exe |
| 0/56 | opera_crashreporter.exe |
Scanner and Detection Names
Here's the detection names for the Opera Software ASA files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
As mentioned above, I think these detections are false positives since it is very unlikely that Opera Software ASA would ship a malware file.
| Scanner | Detection Names |
|---|---|
| Antiy-AVL | Trojan[Packed]/Win32.Krap |
| Bkav | W32.Clod811.Trojan.6fa0, HW32.Stranfom.hoqq |
| ByteHero | Trojan.Win32.Heur.098 |
| CMC | Trojan.Win32.Swizzor.1!O |
| ESET-NOD32 | a variant of Win32/NetInstaller.A |
| Jiangmin | Trojan/Badur.ujr, Trojan/GoogUpdate.lk |
| Rising | PE:Malware.RDM.36!5.2A[F1] |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I've gathered 8644 scan results for the Opera Software ASA files. 11 of these scan results came up with some sort of detection. If you like, you can review the full details of the scan results by examining the files listed above.
Analysis Details
The analysis is done on certificates with the following serial numbers:
- 13c8351aece71c731158980f575f4133
- 71cac98f650605955d9ad86cf2bd56b6
- 1578a42784fcb4416a9a6c033418cd06
- 0510e03cd7b8b71e2e2db16679b09595