Short Name |
DNS:TUNNEL:INVALID-Z-BIT |
---|---|
Severity |
Info |
Recommended |
No |
Category |
DNS |
Keywords |
Invalid Z Bit Set In DNS Flag |
Release Date |
2018/04/05 |
Update Number |
3053 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-11.4+, srx-12.1+, srx-branch-12.1+, vmx-17.4+, vsrx-12.1+, vsrx3bsd-18.2+ |
Signature attempts to capture covert data transfer via Z bit in DNS flag header.