Background
Trend Micro recently reported on Nokoyawa, a ransomware family they discovered earlier this month. They stated Nokoyawa seems to have a connection with Hive ransomware, based on similarities in the attack chains of the two malware families.
Background
Since January, Ukraine has been targeted by several wiper malware families. In early February, we reported on the WhisperGate wiper. Earlier this month we spotlighted HermeticWiper and IsaacWiper. Ukraine was recently under attack by yet another wiper malware. ESET announced the discovery of CaddyWiper on March 14th in a tweet. Cisco Talos followed up a day later with more information on this malware.
Background
Qualys recently published a blog post on AvosLocker ransomware, which targets both Windows and Linux operating systems.
Background
Iranian threat actor group Muddy Water has been very active in the last few months. In February, CISA issued an alert warning that the group was conducting a campaign targeting global government and commercial networks. Earlier this month, Cisco’s Talos Intelligence published a blog post on Muddy Water activity targeting Turkey and other countries.
Background
Last month HP published research on RedLine Stealer, a stealer malware being delivered via fake Windows 11 updates. Almost a month later, RedLine Stealer continues to be active in the wild, with new samples surfacing over the past week.
Background
CERT-UA, the Ukraine government’s incident response team, recently released a report on MicroBackdoor. CERT-UA did not provide further information on the scope of the incident leading to the discovery of this malware.
Background
Cyble recently published research on Jester Stealer, an info stealer known to harvest login credentials, cookies, payment card details, and other information.
