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junwei
junwei
New Member
March 10, 2017
Question

How to block Wechat File Transfer?

  • March 10, 2017
  • 1 reply
  • 8443 views

Hi guys,

Wechat had a recent feature update, that grants the user the ability to transfer files from desktops to the other parties.

 

I would like to block this feature, but yet retain in/out of videos & pictures, or even better, allow incoming file transfer but not outgoing.

I checked the Control Lists, and failed to find an option/signature to block this File Transfer, only Video or Picture Transfers.

 

Any guys has an advice on how to go about this? Or do I have to block Video and Picture transfers totally?

    1 reply

    hmtay_FTNT
    Staff
    hmtay_FTNT
    Staff
    March 10, 2017

    Hello junwei,

     

    Can you add this custom application control signature and set it to Block? 

     

    F-SBID( --name "WeChat.FileTransfer_Custom"; --protocol tcp; --flow from_client; --app_cat 1; --service HTTP; --parsed_type HTTP_POST; --pattern "/upload"; --context uri; --within 20,context; --no_case; --pattern "ver"; --context body; --no_case; --pattern "weixinnum"; --context body; --no_case; --pattern "authkey"; --context body; --no_case; --pattern "filetype|00 00 00 01|5"; --context body; --no_case; --distance 0; --weight 30; )

     

    You do not have to block Video of Picture. This should block any non-video or picture files. 

     

    HoMing

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