Updated: February 13, 2007 11:33:27 AM
Type: Joke
Version: n/a
Publisher: n/a
Risk Impact: Medium
File Names: Bros.exe
Systems Affected: Windows

Behavior


When Joke.Bros is executed, it displays a message that pretends to format the hard drive.

Symptoms


The presence of a window pretending to format the hard disk after 25 seconds.

Transmission


This joke program consists of one file that must be manually executed.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version February 01, 2015 revision 020
  • Initial Daily Certified version August 18, 2003
  • Latest Daily Certified version January 17, 2008 revision 033
  • Initial Weekly Certified release date August 18, 2003

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Updated: February 13, 2007 11:33:27 AM
Type: Joke
Version: n/a
Publisher: n/a
Risk Impact: Medium
File Names: Bros.exe
Systems Affected: Windows


When Joke.Bros is executed, it pretends that it will format the hard disk after 25 seconds unless you click Cancel. However, clicking Cancel does not have an effect on the program.

After the joke program has pretended to format the hard disk, it displays a message stating that it was only a joke.


Updated: February 13, 2007 11:33:27 AM
Type: Joke
Version: n/a
Publisher: n/a
Risk Impact: Medium
File Names: Bros.exe
Systems Affected: Windows


  1. Update the virus definitions.
  2. Run a full system scan and delete all the files detected as Joke.Bros.
For specific details on each of these steps, read the following instructions.

1. Updating the virus definitions
Symantec Security Response fully tests all the virus definitions for quality assurance before they are posted to our servers. There are two ways to obtain the most recent virus definitions:
  • Running LiveUpdate, which is the easiest way to obtain virus definitions: These virus definitions are posted to the LiveUpdate servers once each week (usually on Wednesdays), unless there is a major virus outbreak. To determine whether definitions for this threat are available by LiveUpdate, refer to the Virus Definitions (LiveUpdate).
  • Downloading the definitions using the Intelligent Updater: The Intelligent Updater virus definitions are posted on U.S. business days (Monday through Friday). You should download the definitions from the Symantec Security Response Web site and manually install them. To determine whether definitions for this threat are available by the Intelligent Updater, refer to the Virus Definitions (Intelligent Updater).

    The Intelligent Updater virus definitions are available: Read "How to update virus definition files using the Intelligent Updater" for detailed instructions.

2. Scanning for and deleting the infected files
  1. Start Norton AntiVirus and make sure that it is configured to scan all the files. For more information, read the document, "How to configure Norton AntiVirus to scan all files."
  2. Run a full system scan.
  3. If any files are detected as infected with Joke.Bros, click Delete.