Tuesday, February 24, 2015

Domain: viareality.cz

Domain: viareality.cz


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.


IPtables:


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

U32:
iptables --insert INPUT -p udp --dport 53 -m u32 --u32 "0x28&0xFFDFDFDF=0x0a564941 && 0x2c&0xDFDFDFDF=0x5245414c && 0x30&0xDFDFDFFF=0x49545902 && 0x34&0xDFDFFFFF=0x435a0000 && 0x38&0xFF000000=0xFF000000" -j DROP -m comment --comment "DROP DNS Q viareality.cz"

More U32 rules can be found here:

https://github.com/smurfmonitor/dns-iptables-rules/blob/master/domain-blacklist.txt


String:
iptables --insert INPUT -p udp --dport 53 -m string --from 40 --to 57 --algo bm --hex-string '|0A7669617265616c69747902637a0000ff|' -j DROP -m comment --comment "DROP DNS Q viareality.cz"
More Iptables rules for the STRING module can be found here:


https://github.com/smurfmonitor/dns-iptables-rules/blob/master/domain-blacklist-string.txt

Source:


No IP source for this domain

Name server:


;; ANSWER SECTION:
viareality.cz. 3599 IN NS ns1.regzone.cz.
viareality.cz. 3599 IN NS ns1.regzone.de.
viareality.cz. 3599 IN NS ns1.regzone.info.


Response:


A 14
AAAA 2
DNSKEY 4
MX 6
NS 10
NSEC3PARAM 2
RRSIG 8
SOA 2
Rsize 3779


Whois


% (c) 2006-2015 CZ.NIC, z.s.p.o.
%
% Intended use of supplied data and information
%
% Data contained in the domain name register, as well as information
% supplied through public information services of CZ.NIC association,
% are appointed only for purposes connected with Internet network
% administration and operation, or for the purpose of legal or other
% similar proceedings, in process as regards a matter connected
% particularly with holding and using a concrete domain name.
%
% Full text available at:
% http://www.nic.cz/page/306/intended-use-of-supplied-data-and-information/
%
% See also a search service at http://www.nic.cz/whois/
%
%
% Whoisd Server Version: 3.10.0
% Timestamp: Tue Feb 24 10:58:50 2015

domain: viareality.cz
registrant: MSC-VIACENTRUM
admin-c: MSC-TUMA
nsset: NSSET:ZONER
keyset: KS:ZONER:1289219690
registrar: REG-INTERNET-CZ
registered: 29.08.2008 13:01:54
changed: 08.02.2012 15:58:13
expire: 29.08.2015

contact: MSC-VIACENTRUM
org: viaCentrum s.r.o.
name: Michal Valta
address: Ztracen√° 268/34
address: Olomouc
address: 77200
address: CZ
phone: +420.739025939
e-mail: domain@viacentrum.net
registrar: REG-INTERNET-CZ
created: 29.08.2008 11:12:16

contact: MSC-TUMA
name: Pavel Tuma
address: Pechackova 968/35
address: Plzen
address: 31800
address: CZ
registrar: REG-INTERNET-CZ
created: 03.07.2004 17:35:00
changed: 15.10.2013 20:00:32

nsset: NSSET:ZONER
nserver: ns1.regzone.info
nserver: ns1.regzone.de
nserver: ns1.regzone.cz (217.198.113.10, 2a00:19a0:2:300::2)
tech-c: ZONER
registrar: REG-ZONER
created: 08.04.2010 12:23:52
changed: 28.04.2011 14:16:23

contact: ZONER
org: ZONER software, a.s.
name: ZONER software, a.s.
address: Nové Sady 583/18
address: Brno
address: 602 00
address: CZ
phone: +420.543257244
fax-no: +420.543257245
e-mail: admin@zoner.cz
registrar: REG-ZONER
created: 10.11.2006 13:45:00
changed: 01.12.2011 10:55:14

keyset: KS:ZONER:1289219690
dnskey: 257 3 7 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
tech-c: ZONER
registrar: REG-ZONER
created: 08.11.2010 13:34:55
changed: 30.11.2012 14:51:29




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