Outbreak Alert – Lookslike.Win32.Sirefef.u

Outbreak Alerts by StopSign let you know when specific malware infections are trending, give you info about what they do, and tips on how to avoid them.

What Lookslike.Win32.Sirefef.u Does:

  • Restricts access to the infected machine until the user provides credit card information
  • Significantly slows down the infected machine
  • Displays false error messages

How It Infects:

  • Can be distributed by any means, including but not limited to: Email attachments, instant message attachments, infected websites, infected media or document files, peer-to-peer file sharing networks, or even downloaded by other malware
  • Infection can also be found in hyperlinks to infected websites from email, instant messages, and social networking messages or posts

How To Avoid Infection:

  • Use extreme caution when you receive a link or attachment from anyone, even those you know
  • Do not download unknown files or files from unknown sources
  • If using StopSign, be sure that the On-Access Scan is installed and enabled
  • Scan all downloaded files with a malware threat scanner, such as StopSign, before executing them
  • Ensure that all updates are installed from Microsoft Update to help protect against vulnerabilities in the operating system

Type: Trojan

Technical Name: Lookslike.Win32.Sirefef.u

Aliases:

  • Variant of Win32/Kryptik.APJK
  • BackDoor.Maxplus.7107
  • Backdoor.Win32.ZAccess.adiv
  • Trojan:Win32/Sirefef.P
  • Trojan.Win32.A.PornoAsset.184832.FA

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About Anthony

Anthony is a 30-something software engineer living in the San Francisco Bay Area. Formerly of The Ohio State University (O-H-I-O!) where his focus included physics and electromechanical engineering, he had spent most of his youth abroad and later spent several years in Seattle, Washington as well as Cambridge, Massachusetts. In the few hours during the day not spent front of a large array of test computers, he devotes his free time to private catering and photography shoots, practicing archery and fencing, and gazing longingly at Mars, which he hopes will be his home in 2023.