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  • Hajime worm battles Mirai for control of the Internet of Things

    Symantec Security Response Blogs
    The Hajime worm appears to be the work of a white hat hacker attempting to wrestle control of IoT devices from Mirai and other malicious threats.



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    A battle is raging for control of Internet of Things (IoT) devices. There are many contenders, but two families stand out: the remains of the Mirai botnet, and a new similar family called Hajime.
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  • Latest Intelligence for March 2017

    Symantec Security Response Blogs
    Number of blocked web attacks increases to highest level since July 2016 and Necurs botnet returns with new spam campaigns.



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    Some of the key takeaways from March’s Latest Intelligence, and the threat landscape in general, include the number of blocked web attacks reaching highest level since July 2016, Symantec blocks almost two million malicious emails from the Necurs botnet on its first day back in action, and f

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    Symantec blocked 584,000 web attacks per day in March, highest number since July 2016



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  • Android O no! Android O causes problems for mobile ransomware developers

    Symantec Security Response Blogs
    Changes in Google’s newest mobile OS will impact the functionality of many Android ransomware threats.



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    The first developer preview of Google’s latest mobile operating system, Android O, has been released. As usual, the newest version of Android has several new features and updates. One of those updates has a direct impact on many Android ransomware threats.
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  • Microsoft Patch Tuesday – April 2017

    Symantec Security Response Blogs
    This month the vendor has released 44 vulnerabilities, 13 of which are rated Critical.



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    Hello, welcome to this month's blog on the Microsoft patch release. This month the vendor has released 44 vulnerabilities, 13 of which are rated Critical.
    As always, customers are advised to follow these security best practices:
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  • Kelihos/Waledac: US law enforcement hits botnet with major takedown

    Symantec Security Response Blogs
    Alleged botnet operator arrested in Spain, faces multiple charges in the US.



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    The US Justice Department has launched a coordinated takedown operation to disrupt and dismantle the Kelihos botnet (also known as Waledac).

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    Spam botnet #Kelihos/#Waledac hit by major FBI takedown and arrest of key suspect



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  • Longhorn: Tools used by cyberespionage group linked to Vault 7

    Symantec Security Response Blogs
    First evidence linking Vault 7 tools to known cyberattacks.



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    Spying tools and operational protocols detailed in the recent Vault 7 leak have been used in cyberattacks against at least 40 targets in 16 different countries by a group Symantec calls Longhorn. Symantec has been protecting its customers from Longhorn’s tools for the past three years and has continued to track the group in order to learn more about its tools, tactics, and procedures.

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    #Vault7 linked #Longhorn group infiltrated governments, international orgs, other targets



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  • Free Nintendo Switch emulators are fake

    Symantec Security Response Blogs
    Fake emulators for newly released Nintendo console used as bait to get users to fill out survey scams and download potentially unwanted applications.



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    Over the last few weeks, scammers have been trying to dupe users into believing that a software emulator exists for the Nintendo Switch, the company’s newest console that was released on March 3, 2017.

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    Scammers are using fake Nintendo Switch emulators to make users fill out survey scams, download PUAs



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  • Necurs: Mass mailing botnet returns with new wave of spam campaigns

    Symantec Security Response Blogs
    Unexplained three-month absence resulted in a seven-fold decrease in rate of emails containing malware.



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    After a near three-month period of inactivity, the Necurs botnet sprang back to life last week and resumed the mass mailing spam campaigns for which it has become notorious.

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    #Necurs spam #botnet is back. 3-month absence saw a 7-fold drop in rate of email containing malware

    Symantec has blocked up to 1.9million emails per day from #Necurs since #botnet's return



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  • Personalized spam campaign targets Germany

    Symantec Security Response Blogs
    A new spam campaign targeting German users uses victims’ real details and installs banking malware on compromised computers.



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    A spam campaign Symantec observed in January 2017 targeting people who live in Germany appears to be, once again, using detailed, real personal information to enhance the believability of the messages. Victims who open the message attachments are likely to have their Windows computers infected with malware that steals banking information.

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    Targeted malicious #spam against German-speaking victims uses real-world info as bait



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  • Microsoft Patch Tuesday – March 2017

    Symantec Security Response Blogs
    This month the vendor is releasing 18 bulletins, nine of which are rated Critical.



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    Hello, welcome to this month's blog on the Microsoft patch release. This month the vendor is releasing 18 bulletins, nine of which are rated Critical.
    As always, customers are advised to follow these security best practices:
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