Tag: Threat Hunting Content

Zerologon Attack Detection (CVE-2020-1472)

After a very hot July, especially fruitful for critical vulnerabilities (1, 2, 3), Microsoft’s Patch Tuesday in August went relatively quiet. Yes, once again more than a hundred vulnerabilities were patched, yes, 17 flaws were rated as Critical, and Microsoft didn’t point at bugs of the “We All Doomed” level. Although back then security researchers […]

Read More
Smaug Ransomware Detector (Sysmon Behavior)

Today we would like to draw your attention to a relatively recent threat and content for its detection. Smaug Ransomware-as-a-Service appeared on researchers’ radars at the end of April 2020, attackers look for affiliates exclusively on Russian-language Dark Web forums and offer using their platform for a fairly large initial payment and 20% of further […]

Read More
PyVil RAT by Evilnum Group

The Evilnum group operations were first discovered in 2018. The group is highly focused on attacks on large financial technology organizations, especially on investment platforms and cryptocurrency-related companies. Most of their targets are located in Europe and the United Kingdom, but the group also carried out separate attacks on organizations in Canada and Australia. Researchers […]

Read More
Economic Espionage Campaign by TA413

The use of COVID19 related lures is already perceived as common practice among both financially motivated groups and state-sponsored cyber espionage units. Researchers released a report last week about another group that has been using COVID19 themed phishing emails for six months to deliver their new tool. Yes, we are talking about the Chinese APT […]

Read More
Snatch Ransomware Attack Detection

Ransomware continues to be one of the most serious threats to corporate networks, and Snatch ransomware is one of the most annoying “guests” that emerged relatively recently. The first infections were recorded about two years ago, but serious attacks on organizations began only in April 2019, and since then, the appetites and skills of the […]

Read More
JSOutProx RAT

Last year, India was named the most cyber-attacked country. Critical infrastructures in oil and gas industries, and defence, banking, and manufacturing sectors are listed as the most common targets.  In April 2020, the governmental establishments and a number of banks in India were targeted by email campaigns delivering a malicious JavaScript and Java-based backdoor which […]

Read More
Transparent Tribe APT

Transparent Tribe (aka PROJECTM and MYTHIC LEOPARD) is a cyber espionage unit that is linked to the Pakistani government and has been active since at least 2013. The group has been quite active in the last four years targeting primarily Indian military and government personnel, but during the last year, they attacked more and more […]

Read More
Threat Hunting Rules: PurpleWave Infostealer

Another Infostealer with backdoor functions was discovered in late July. Malware authors advertise it on Russian cybercrime forums and sell various modifications of the utility at an affordable price. New Infostealer is written in C++ and was dubbed PurpleWave by its authors.  The malware can perform a number of malicious actions of a hacker’s choice […]

Read More
Threat Hunting Rules: Possible C2 Connection via DoH

It’s been a year since the first malware timidly exploited DNS-over-HTTPS (DoH) to retrieve the IPs for the command-and-control infrastructure. Security researchers had already warned that this could be a serious problem and started to look for a solution that would help detect such malicious traffic. More and more malware has been switching to DoH […]

Read More
Threat Hunting Rules: Gamaredon Group Behavior

The Gamaredon group appeared in 2013 and at first, did not use custom malware, but over time developed a number of cyber espionage tools, including Pterodo and EvilGnome malware. In recent months, the group has been actively sending phishing emails with documents containing malicious macros that download a multitude of different malware variants. The Gamaredon […]

Read More