As per NCC Group, a UK-based risk mitigation organisation, PYSA and Lockbit were the most significant ransomware attacks in November 2021.
Lockbit has been a leading ransomware threat since August of this year, with Conti dominating the landscape as well. Conti's popularity began to fade in November, and PYSA took its place.
The total number of organisations infected with PYSA climbed by 50% last month.
The number of hacked governmental institutions has also increased by 400 per cent, according to the NCC Group.
PYSA is for 'Protect Your System Amigo,' and it has been active since late 2019, mostly targeting the education, healthcare, and government sectors.
In March 2021, the FBI issued a warning about PYSA.
PYSA was thought to only target Windows systems until September 2021, but the evidence was discovered that the ransomware was getting prepared to target Linux PCs as well.
NCC Group noted, “PYSA is a malware capable of exfiltrating data and encrypting users’ critical files and data, which typically targets large or high-value finance, government and healthcare organizations.”
In November, the total number of ransomware assaults was 1.9 per cent higher than in October, with firms in North America and Europe being hit the hardest.
According to the NCC Group, ransomware affected 154 companies in North America last month (140 in the United States and 14 in Canada). A total of 96 European victims have been identified, the majority of whom are from the United Kingdom (32), France (14), Italy, and Germany (11 each).
“The industrial sector continued to be the most targeted sector in November. Meanwhile, automotive, housing, entertainment, and retail businesses overtook technology this month, with attacks targeting the sector decreasing by 38.1%,” NCC Group stated.
The cybersecurity firm also saw the Everest ransomware group providing paid access to their victims' infrastructure in November. Other groups are also anticipated to forego a ransom demand in the future and instead grant access to the compromised infrastructure.
