botnet

Pierluigi Paganini October 21, 2016
US users were not able to reach Twitter and other sites due to DDoS on Dyn DNS Service

A severe distributed denial-of-service (DDoS) it targeting the Managed DNS infrastructure of cloud-based Internet performance management company Dyn. A severe distributed denial-of-service (DDoS) it targeting the Managed DNS infrastructure of cloud-based Internet performance management company Dyn. Many users of major websites are not able to reach web services such as Twitter, GitHub, The list of affected websites […]

Pierluigi Paganini October 16, 2016
The Mirai botnet is targeting also Sierra Wireless cellular data gear products

Sierra Wireless is warning its customers to change factory credentials of its AireLink gateway communications products due to Mirai attacks. Sierra Wireless is warning its customers to change factory credentials of its AireLink gateway communications product. The company is aware of a significant number of infections caused by the Mirai malware, a threat specifically designed […]

Pierluigi Paganini October 14, 2016
SSHowDowN Proxy attacks – A 12-Year-Old SSH bug exposes more than 2M IoT Devices

Akamai Technologies revealed that hackers are exploiting a 12-year-old bug in OpenSSH to hack into millions of IoT devices with SSHowDowN Proxy attacks. IoT devices are a privileged target for hackers, design flaws and wrong configurations open to the attackers. Recently we read about massive DDoS attacks powered by huge botnets powered by hundreds of […]

Pierluigi Paganini October 06, 2016
Which are principal cities hostages of malicious botnets?

Which are principal cities hostages of malicious botnets? Symantec has tried to reply the difficult questions with an interesting study. It is not a mystery, there is a strict link between cybercrime and Geography. Cyber criminal organization used different tactics and offer different products depending on the country where they operate. Russian criminal communities specialize in […]

Pierluigi Paganini October 03, 2016
The source code of the Mirai IoT botnet leaked online. Do you trust it?

A hacker released the source code of the Mirai malware that powered the record-breaking DDoS attack against the Brian Krebs Website, but … A couple of weeks ago the unknown hackers launched a massive Distributed Denial of Service (DDoS) attack against the website of the popular cyber security investigator Brian Krebs. Further investigation revealed the involvement of […]

Pierluigi Paganini September 29, 2016
Necurs botnet: the resurrection of the monster and the rising of spam

Necurs botnet, the monster is resurrected. Banking Trojans and Ransomware propagated via spam is bring backing the high-volume spam campaign Botnets are like monsters that surface back after some period of inactivity, this time, the monster it the dreaded Necurs botnet. The Necurs Botnet is one of the world’s largest malicious architectures, used to spread the dreaded […]

Pierluigi Paganini September 28, 2016
Cisco Talos profiled the GozNym botnet after cracking the trojan DGA

The Talos team published a detailed analysis of the GozNym botnet, it was possible because the experts cracked the DGA algorithm used by the malware. In April 2015, the researchers from the  IBM X-Force Research discovered a new banking Trojan dubbed GozNym Trojan that combines best features of Gozi ISFB and Nymaim malware. The GozNym has been seen targeting […]

Pierluigi Paganini September 27, 2016
150,000 IoT Devices behind the 1Tbps DDoS attack on OVH

The hosting provider OVH continues to face massive DDoS attacks launched by a botnet composed at least of 150000 IoT devices. Last week, the hosting provider OVH faced 1Tbps DDoS attack, likely the largest one ever seen. The OVH founder and CTO Octave Klaba reported the 1Tbps DDoS attack on Twitter sharing an image that lists the […]

Pierluigi Paganini September 19, 2016
Vawtrak v2, a close look at the cybercriminal groups behind the threat

Security experts from the cyber threat intelligence firm Blueliv have published a report on the banking Trojan Vawtrak v2 its criminal ecosystem. Security experts from the cyber threat intelligence firm Blueliv have conducted a technical investigation on the banking Trojan Vawtrak v2 and activities of the cybercriminal groups behind the threat. Vawtrak is a threat that has been […]

Pierluigi Paganini September 11, 2016
LuaBot is the first Linux DDoS botnet written in Lua Language

The researcher MalwareMustDie discovered LuaBot, a trojan completely coded in Lua language that is targeting Linux platforms to recruit them in DDoS botnet. Let’s continue our tour in Linux security, focusing on malicious code specifically designed to target such systems. The popular security researcher MalwareMustDie, who recently reported the new ELF trojan backdoorLinux/Mirai, also discovered a […]