- Wireshark Tutorial: Examining Ursnif Infections
December 23, 2019
Ursnif is banking malware sometimes referred to as Gozi or IFSB. The Ursnif family of malware has been active for years, and current samples generate distinct traffic patterns. This tutorial reviews packet captures (pcaps) of infection Ursnif traffic using Wireshark. Understanding these traffic patterns can be critical for security professionals when detecting and investigating Ursnif infections. This tutorial covers ...
- This ‘grab-bag’ hacking attack drops six different types of malware in one go
December 19, 2019
A high-volume hacking campaign is targeting organisations around the world with attacks that deliver a ‘grab-bag’ of malware that includes information-stealing trojans, a remote backdoor, a cryptojacker and a cryptocurrency stealer. Uncovered by researchers at Deep Instinct, the combination of the volume of attacks with the number of different malware families has led to the campaign being named ‘Hornet’s Nest’. The ...
- Rancor: Cyber Espionage Group Uses New Custom Malware to Attack Southeast Asia
December 17, 2019
In late June 2018, Unit 42 revealed a previously unknown cyber espionage group we dubbed Rancor, which conducted targeted attacks in Southeast Asia throughout 2017 and 2018. In recent attacks, the group has persistently targeted at least one government organization in Cambodia from December 2018 through January 2019. While researching these attacks, we discovered an undocumented, ...
- Lazarus pivots to Linux attacks through Dacls Trojan
December 17, 2019
Lazarus, an advanced persistent threat (APT) group, has expanded its reach with the development and use of a Trojan designed to attack Linux systems. The APT, suspected to hail from North Korea, has previously been connected to global cyberattacks and malware outbreaks including the infamous WannaCry rampage, the $80 million Bangladeshi bank heist, and a new campaign impacting financial institutions worldwide. Recent reports ...
- Mirai Variant ECHOBOT Resurfaces with 13 Previously Unexploited Vulnerabilities
December 13, 2019
Since the discovery of the Mirai variant using the binary name ECHOBOT in May 2019, it has resurfaced from time to time, using new infrastructure, and more remarkably, adding to the list of vulnerabilities it scans for, as a means to increase its attack surface with each evolution. Unlike other Mirai variants, this particular variant stands out for the sheer ...
- Multi-stage downloader Trojan sLoad abuses BITS almost exclusively for malicious activities
December 12, 2019
Many of today’s threats evolve to incorporate as many living-off-the-land techniques as possible into the attack chain. The PowerShell-based downloader Trojan known as sLoad, however, puts all its bets on BITS. Background Intelligent Transfer Service (BITS) is a component of the Windows operating system that provides an ability to transfer files in an asynchronous and throttled fashion using ...
- More than a Dozen Obfuscated APT33 Botnets Used for Extreme Narrow Targeting
December 12, 2019
The threat group regularly referred to as APT33 is known to target the oil and aviation industries aggressively. This threat group has been reported on consistently for years, but our recent findings show that the group has been using about a dozen live Command and Control (C&C) servers for extremely narrow targeting. The group puts up multiple layers of obfuscation to ...
- DeCypherIT – All eggs in one basket
December 12, 2019
These days, attackers use cheap and publicly accessible services to help them bypass Anti-Virus protections and gain a foothold in their victims’ systems. We give a behind the scenes look at a service called CypherIt, which is sold publicly as a legitimate service but is used to wrap malwares and hide their malicious content. This evasion technique ...
- Zeppelin: Russian Ransomware Targets High Profile Users in the U.S. and Europe
December 11, 2019
Zeppelin is the newest member of the Delphi-based Ransomware-as-a-Service (RaaS) family initially known as Vega or VegaLocker. Although it’s clearly based on the same code and shares most of its features with its predecessors, the campaign that it’s been part of differs significantly from campaigns involving the previous versions of this malware. Vega samples were first ...
- Waterbear is Back, Uses API Hooking to Evade Security Product Detection
December 11, 2019
Waterbear, which has been around for several years, is a campaign that uses modular malware capable of including additional functions remotely. It is associated with the cyberespionage group BlackTech, which mainly targets technology companies and government agencies in East Asia (specifically Taiwan, and in some instances, Japan and Hong Kong) and is responsible for some infamous campaigns ...