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        Takeover of Domain Silver, Inc .pl domains – updated with sinkhole statistics  On 30th of July, 2013 NASK terminate its agreement with a registrar, Domain Silver, Inc. We described the reason for that decision in a detailed technical report. Today we publish an updated version of the report with our sinkhole statistics. These statistics were made from 20 different botnets sinkholed by … Read more
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        Anti-botnet effort continues – takeover of Domain Silver, Inc .pl domains  Today we publish an overview of domains registered through Domain Silver, Inc, a registrar operating in the .pl domain. This Registrar started operating in May 2012. Since that time, the CERT Polska team started to observe a large increase in the amount of malicious domains registered in .pl and to … Read more
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        Evolution of an Android malware: the story of a friend of ZitMo  Recently we blogged about a new threat to Polish e-banking users called “E-Security”. When a user, whose machine was infected, tried to access her internet banking site she was greeted with a message that instructed her to install “E-Security Certificate” application on her Android phone. This “certificate” was nothing more … Read more
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        ZeuS-P2P internals – understanding the mechanics: a technical report  At the beginning of 2012, we wrote about the emergence of a new version of ZeuS called ZeuS-P2P or Gameover. It utilizes a P2P (Peer-to-Peer) network topology to communicate with a hidden C&C center.This malware is still active and it has been monitored and investigated by CERT Polska … Read more
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        Malware campaign on Polish governmental site  CERT Polska and CERT.GOV.PL recently discovered a website in the gov.pl domain that has been a part of malware campaign at least since the beginning of May 2013. The page contained a JavaScript code that added a hidden iframe which redirected to the exploit kit. Next, with … Read more
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        The “E-Security” app: a new friend of ZitMo  Recently, we obtained a new Android malware sample, which is targeting Polish e-banking users. The application is called “E-Security” and its filename is e-security.apk . It also has a security-related icon shown on the left. The malware is relatively simple, but effective at achieving its goals … Read more
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        23 April 2013 CERT PolskaCERT Polska Annual Report 2012  Our Annual Report for 2012 is based mostly on data feeds from various automated systems. They provided us with information on more than 10.5 million of incidents in Polish networks last year. Most of this data is consequently passed on via n6 platform to corresponding Internet providers for handling … Read more
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        Citadel plitfi botnet report  At the end of February 2013 Polish Research and Academic Computer Network and CERT Polska took over 3 domains used by one of the Citadel botnets, known as “plitfi”. All the network traffic from these domains was directed to a sinkhole server controlled by CERT Polska. Today we publish a … Read more
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        In-depth look at Kippo: an integration perspective  Brute-force (dictionary) attacks on Secure Shell (SSH) services remain popular on the Internet. Although hardly a sophisticated type of attack, it is relatively effective, and one of the most common intrusion vectors for UNIX servers. Kippo is a low-interaction honeypot emulating the SSH service. The honeypot can be used to … Read more
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            SECURE 2013 Call for Speakers is Now Open  SECURE is a conference dedicated entirely to IT security and addressed to administrators, security team members and practitioners in this field. SECURE’s unique feature is the organisers’ commitment to providing participants with reliable information about everything that is current and meaningful in IT security. A high professional level of … Read more