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Malwarebytes found several Trojan.Siredef.C on my computer. Why is Webroot not finding these?

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Malwarebytes scan found six Trojan.Siredef.C on my computer. Why is Webroot not finding these and how do I get rid of them? 

Best answer by Petrovic

Hello and Welcome to the Webroot Community Forums!
 
If you suspect that you have threat:
The best thing to do is to Open a Support Ticket, and ask Webroot Support to take a look and remove this for you.  There is no charge for this if you are a WSA license holder, with a current subscription.
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Virus Removal Options
https://community.webroot.com/t5/Webroot-SecureAnywhere-Antivirus/Virus-Removal-Options/ta-p/54074
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    Did this help you find an answer to your question?

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    Petrovic
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    • March 31, 2015
    Hello and Welcome to the Webroot Community Forums!
     
    If you suspect that you have threat:
    The best thing to do is to Open a Support Ticket, and ask Webroot Support to take a look and remove this for you.  There is no charge for this if you are a WSA license holder, with a current subscription.
    +
    Virus Removal Options
    https://community.webroot.com/t5/Webroot-SecureAnywhere-Antivirus/Virus-Removal-Options/ta-p/54074
    Helpful Webroot Links: Download (PC) | Download (Best Buy Subscription) | Submit Support Ticket | Account Console | User_Guides | BrightCloud URL lookup
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    • March 31, 2015
    Hello aliforjc2,
     
    Welcome to the Community Forum,
     
    Trojan:Win32/Sirefef.C is the detection for a component of the Win32/Sirfef family,
     a multi-component family of malware that moderates your Internet experience by changing search results and generating pay-per-click advertising revenue for its controllers. The family consists of multiple parts that perform different functions, such as downloading updates and additional components, hiding existing components, or performing a payload.
     
    I'm not sure why this wasn't detected by Webroot. But would you please submit a Support Ticket as Petr. has suggested.
     
     
    Kind Regards,
    Windows Insider, iMac 2021 27 in i5 Retina 5, iMac OS Sequoia (15.3.2}, Security: iPads, W 10 & (VM:15), ALIENWARE 17R4, W10 Workstation, ALIENWARE 15 R6, W11, Webroot® SecureAnywhere™ Internet Security Complete (Android Samsung Galaxy Ultra Note 23, Webroot Beta Tester. Security
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    • March 31, 2015
    Thanks for the help!  I will go ahead and open a ticket. 
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    • June 11, 2018
    Hello 
     
    I would like to know if  you have found a good explanation to this issue when you submitted a ticket.
     
    Pleasse let me know 
     
    Thanks 
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    • June 11, 2018
    @ wrote:
    Hello 
     
    I would like to know if  you have found a good explanation to this issue when you submitted a ticket.
     
    Pleasse let me know 
     
    Thanks 
    On a three year old thread? https://www.webroot.com/blog/2015/12/02/whats-in-a-name/
    Daniel - Microsoft MVP Consumer Security (2012-2016) Windows 10 Pro x64 for Workstations 22H2 on my Alienware 17R2 and Alienware 17R5 Laptops with Webroot SecureAnywhere Complete Beta Tester for PC & Android Moto G9 Plus OS 11. "Take Them to the Train Station" ¯\_(ツ)_/¯
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    • December 30, 2019

    I realize I'm commenting on an ancient thread but I find answering a different question, giving a politicians answer, ie shifting the focus away from original question and just not addressing the OPs concern maddening 

     

    OP had a very valid question. One I am constantly curious about as I also have Malware detected by Malwarebytes free and not by WR.

     

    If anybody has an answer they are willing to summarize in this thread without giving a link to an article it would be much appreciated.

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    • December 31, 2019
    cliffm wrote:

    I realize I'm commenting on an ancient thread but I find answering a different question, giving a politicians answer, ie shifting the focus away from original question and just not addressing the OPs concern maddening 

     

    OP had a very valid question. One I am constantly curious about as I also have Malware detected by Malwarebytes free and not by WR.

     

    If anybody has an answer they are willing to summarize in this thread without giving a link to an article it would be much appreciated.

    Hello @cliffm,

    The only information that you have provided is that another vendor detected something on your machine. Please Submit A Support Ticket so that we can gather more information as to what exactly was detected and what we may or may not have missed. 

     

    -Dan

    Webroot Threat Research
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    • December 31, 2019
    DanP wrote:
    cliffm wrote:

    I realize I'm commenting on an ancient thread but I find answering a different question, giving a politicians answer, ie shifting the focus away from original question and just not addressing the OPs concern maddening 

     

    OP had a very valid question. One I am constantly curious about as I also have Malware detected by Malwarebytes free and not by WR.

     

    If anybody has an answer they are willing to summarize in this thread without giving a link to an article it would be much appreciated.

    Hello @cliffm,

    The only information that you have provided is that another vendor detected something on your machine. Please Submit A Support Ticket so that we can gather more information as to what exactly was detected and what we may or may not have missed. 

     

    -Dan

     

    Dan

    Thanks for responding. I’m not concerned enough to submit a ticket but thanks for the offer.

    That was not the point of my post. My point was all about the OP’s question. It was a valid one and submit a ticket is a good answer but not what he (or me) were looking for on the thread. 

    I’m pretty sure the OP wanted to know the possible explanations as to why this may happen. Since nobody answered his question I did my own research and feel comfortable with the probable reason. 

    In summary, it woulda been nice to simply read a likely possibility like the one I found on my own.

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