Tuesday, November 25, 2014

Domain: non.digmehl.cu.cc

Domain: non.digmehl.cu.cc

If you are seeing queries for this domain, than you are likely participating in DNS Amplification attacks and your DNS server is probably reachable from the internet and has recursion enabled.

If you are seeing responses for this domain.. unlucky. You are currently beeing DDOS-ed! Good luck.


There are two iptable rules available. If your distribution supports Iptables 'u32' module pick this one, otherwise use the 'string' rule.

iptables --insert INPUT -p udp --dport 53 -m u32 --u32 "0x28&0xFFDFDFDF=0x034e4f4e && 0x2c&0xFFDFDFDF=0x07444947 && 0x30&0xDFDFDFDF=0x4d45484c && 0x34&0xFFDFDFFF=0x02435502 && 0x38&0xDFDFFF00=0x43430000" -j DROP -m comment --comment "DROP DNS Q non.digmehl.cu.cc"

More U32 rules can be found here:


iptables --insert INPUT -p udp --dport 53 -m string --from 40 --to 59 --algo bm --hex-string '|036e6f6e076469676d65686c02637502636300|' -j DROP -m comment --comment "DROP DNS Q non.digmehl.cu.cc"
More Iptables rules for the STRING module can be found here:



No IP source for this domain

Name server:

digmehl.cu.cc. 21599 IN NS ken.ns.cloudflare.com.
digmehl.cu.cc. 21599 IN NS chan.ns.cloudflare.com.


Rsize 4095


Whois Server Version 2.0

Domain names can now be registered with many different competing registrars.
Go to http://registrar.verisign-grs.com/whois/ for detailed information.

No match for "DIGMEHL.CU.CC".

>>> Last update of whois database: 2014-11-25T22:25:55Z <<<

NOTICE: The expiration date displayed in this record is the date the
registrar's sponsorship of the domain name registration in the registry is
currently set to expire. This date does not necessarily reflect the
expiration date of the domain name registrant's agreement with the
sponsoring registrar. Users may consult the sponsoring registrar's
Whois database to view the registrar's reported date of expiration
for this registration.

The Registry database contains ONLY .cc, .tv, and .jobs domains
and Registrars.

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