Category: Uncategorized

A New Twist In SSDP Attacks

Arbor ASERT has uncovered a new class of SSDP abuse where naïve devices will respond to SSDP reflection/amplification attacks with a non-standard port. The resulting flood of UDP packets have ephemeral source and destination ports, making mitigation more difficult – a SSDP diffraction attack. This […]

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Kardon Loader Looks for Beta Testers

Kardon Loader Advertisement

Key Findings ASERT researchers discovered Kardon Loader being advertised on underground forums. Kardon Loader features functionality allowing customers to open their own botshop, which grants the purchaser the ability to rebuild the bot and sell access to others. Kardon Loader is in early stages of […]

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The Flusihoc Dynasty, A Long Standing DDoS Botnet

Since 2015, ASERT has observed and followed a DDoS Botnet named Flusihoc. To date very little has been published about this family, despite numerous anti-virus and intrusion detection signatures created by various vendors. Flusihoc has remained persistent with multiple variants, over 500 unique samples in […]

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Change All Your Passwords, Right Now!

by Steinthor Bjarnason, Senior ASERT Security Analyst & Roland Dobbins, ASERT Principal Engineer CloudFlare are probably best known as a DDoS mitigation service provider, but they also operate one of the largest Content Delivery Networks (CDNs) on the Internet. Many popular Web sites, mobile apps, […]

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Additional Insights on Shamoon2

IBM analysts recently unveiled a first look at how threat actors may have placed Shamoon2 malware on systems in Saudi Arabia. Researchers showcased a potential malware lifecycle which started with spear phishing and eventually led to the deployment of the disk-wiping malware known as Shamoon. […]

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Analysis of CryptFile2 Ransomware Server

Download ASERT Threat Intelligence Report 2016-06 here This report describes several elements of a ransomware staging system using the Nemucod malware to deliver CryptFile2 (aka Hydracrypt.A and Win32/Filecoder.HydraCrypt.C) ransomware, an ongoing threat since at least mid-March of 2016. This report reveals TTP’s (tactics, techniques, procedures) of […]

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