VPNFilter.pdf - VPNFilter Introduction TALOS a security...

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VPNFilter Introduction TALOS, a security intelligence and research group of Cisco Systems, on 23rd May 2018, notified to the public that a new threat had been detected known as VPNFilter. According to the press release they had been working on the malware for quite some time at the time they release the news to the public. Five hundred thousand devices in fifty-four countries were estimated to be affected by the malware (Largent 2018). Problem Description According to Jenkins (2018), VPNFilter is a malware system created to target networking devices around the world. It began in Ukraine with a large-scale infection of devices in the country. VPNfilter malware is a multi-phase and highly modular system which infects routers and specific kind of networking storage devices. It primarily affects Linux and Busybox based system (FortiGuard 2018). Once the malware is installed into the system, then it could be used to sniff a customer credential. The attacker of the malware can utilize the compromised systems to create Virtual Private Network (VPN), which makes the mitigation more difficult because it is difficult to trace the point of origin of the attack in the VPN. Operation As illustrated in Figure 1, VPNFilter operates in the following stages (Largent 2018); - Stage 1 - This stage involves locating a server from which the infected code could be downloaded. This code can infect the configuration in non-volatile memory and to
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  • Three '19
  • Computer network, 2010s, Denial-of-service attack, Distributed control system

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