Mofang: A politically motivated information stealing adversary

Mofang (模仿, Mófa ̌ng, to imitate) is a threat actor that almost certainly operates out of China and is probably government-affiliated. It is highly likely that Mofang’s targets are selected based on involvement with investments, or technological advances that could be perceived as a threat to the Chinese sphere of influence. This is most clearly … Continue reading Mofang: A politically motivated information stealing adversary

Large malvertising campaign hits popular Dutch websites

On Sunday April 10th the Fox-IT Security Operations Center (SOC) started to see an increase of exploit kit related incidents. The incidents originated from a large malvertising campaign hitting the Netherlands. The list of affected websites spreads across most of the popular Dutch websites. In total we've now seen at least 288 websites being affected. To … Continue reading Large malvertising campaign hits popular Dutch websites

Website of security certification provider spreading ransomware

Since Monday the 21st of March the Fox-IT Security Operations Center (SOC) has been observing malicious redirects towards the Angler exploit kit coming from the security certification provider known as the EC-COUNCIL. As of writing this blog article on the Thursday the 24th of March the redirect is still present on the EC-COUNCIL iClass website … Continue reading Website of security certification provider spreading ransomware

The state of Ransomware in 2015

Introduction Ransomware has been a threat for quite some years, although the ransomware as its currently known, encrypting files, has only been around a few years. This change started with the initial 2013 CryptoLocker infections authored by the creator of the notorious Zeus banking malware, Slavik. Since CryptoLocker, many new variants as well as completely … Continue reading The state of Ransomware in 2015

Large malvertising campaign targeting the Netherlands

At the Fox-IT SOC we see malvertising incidents on a daily basis, as blogged on before. Sadly malvertising has become a usual occurence, but the events we've been observing since Thursday the 11th of June stood out. An active malvertising campaign propagating via 2 major advertisement networks is targeting visitors only coming from the Netherlands, using the Angler … Continue reading Large malvertising campaign targeting the Netherlands

CryptoPHP a week later: more than 23.000 sites affected

On November 20th we published our report on CryptoPHP. Since publishing we have, together with other parties, been busy dealing with the affected servers and taking down the CryptoPHP infrastructure. Sinkhole statistics With the help of the NCSC, Abuse.ch, Shadowserver and Spamhaus we have been able to gather data about the scale of the operation … Continue reading CryptoPHP a week later: more than 23.000 sites affected

Malvertising: Not all Java from java.com is legitimate

Isn't it ironic getting a Java exploit via java.com, the primary source for one of the most common used browser plugins? Current malvertising campaigns are able to do this. This blog post details a relatively new trend: real-time advertisement bidding platforms being infiltrated by cyber criminals spreading malware.   Conclusion Malvertising has changed over the years starting … Continue reading Malvertising: Not all Java from java.com is legitimate