E & F Limited - 7% Detection Rate *

Did you just run into a download or a file on your computer that has a digital signature from E & F Limited? Some of the security products refers to the detected files as GrayWare[AdWare:not-a-virus]/Win32.Skyli and Adware.W3i.44. The detection rate for the E & F Limited files collected here is 7%. Please read on for more details.

You will typically see E & F Limited when double-clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the additional details from the E & F Limited digital signature with the following steps:

1. Open up Windows Explorer and locate the E & F Limited file
2. Right-click the file and select Properties
3. Click the Digital Signatures tab
4. Click the View Certificate button

Here is a screenshot of a file signed by E & F Limited:

As you can see in the screengrab above, Windows reports that "This digital signature is OK". This implies that the file has been published by E & F Limited 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, and so on. You can also view the address for E & F Limited, such as the street name, city and country.

VeriSign Class 3 Code Signing 2010 CA has issued the E & F Limited certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.

E & F Limited Files

The following are the E & F Limited files I have gathered, thanks to the FreeFixer users.

Scanner and Detection Names

Here's the detection names for the E & F Limited files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.

* How the Detection Percentage is Calculated

The detection percentage is based on the fact that I've collected 101 scan results for the E & F Limited files. 7 of these scan results came up with some sort of detection. 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:

• 7dbc05f86288f5858494de063d75ed47

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