Claro Company, the largest telecom operator in Central and South America, disclosed being hit by ransomware. Representatives shared this information in response to the service disruptions in several regions. From the ransom note it becomes clear that the attackers are Trigona ransomware.
From OneNote to RansomNote: An Ice Cold Intrusion - The DFIR Report
In late February 2023, threat actors rode a wave of initial access using Microsoft OneNote files. In this case, we observed a threat actor deliver IcedID using this method. After loading IcedID and establishing persistence, there was no further actions, other than beaconing for over 30 days. The threat actor used Cobalt Strike and AnyDesk to target a file server and a backup server. * The threat actor used FileZilla to exfiltrate data from the network before deploying Nokoyawa ransomware.
The LockBit ransomware gang is one of the most notorious organized cybercrime syndicates that exists today. The gang is behind attacks targeting private-sector corporations and other high-profile industries worldwide. News and media outlets have documented many LockBit attacks, while security vendors offer technical assessments explaining how each occurred. Although these provide insight into the attacks, I wanted to know more about the human side of the operation to learn about the insights, motivations, and behaviors of the individuals on the other side of the keyboard. To prepare for this project, I spent months developing several online personas and established their credibility over time to gain access to the gang’s operation.
Microsoft links Raspberry Robin malware to Evil Corp attacks
Microsoft has discovered that an access broker it tracks as DEV-0206 uses the Raspberry Robin Windows worm to deploy a malware downloader on networks where it also found evidence of malicious activity matching Evil Corp tactics.
SEKOIA.IO presents its Ransomware threat landscape for the first semester of 2022, with the following key points: Ransomware victimology – recent evolutions A busy first half of the year – several newcomers in the ransomware neighborhood Cross-platform ransomware features trend New extortion techniques State-nexus groups carrying out ransomware campaigns Ransomware threat groups’ Dark Web activities * A shift towards extortion without encryption?
LockBit 3.0 introduces the first ransomware bug bounty program
The LockBit ransomware operation has released 'LockBit 3.0,' introducing the first ransomware bug bounty program and leaking new extortion tactics and Zcash cryptocurrency payment options.
Conti ransomware finally shuts down data leak, negotiation sites
The Conti ransomware operation has finally shut down its last public-facing infrastructure, consisting of two Tor servers used to leak data and negotiate with victims, closing the final chapter of the notorious cybercrime brand.
Analysis and Attribution of the Eternity Ransomware: Timeline and Emergence of the Eternity Group
XVigil discovered a financially motivated threat actor group, dubbed Eternity group, actively operating on the internet, selling worms, stealers, DDoS tools, and ransomware builders.
President Rodrigo Chaves says Costa Rica is at war with Conti hackers
The president of Costa Rica says his country is "at war", as cyber-criminals cause major disruption to IT systems of numerous government ministries. Rodrigo Chaves said hackers infiltrated 27 government institutions, including municipalities and state-run utilities.
US links Thanos and Jigsaw ransomware to 55-year-old doctor
The US Department of Justice today said that Moises Luis Zagala Gonzalez (Zagala), a 55-year-old cardiologist with French and Venezuelan citizenship residing in Ciudad Bolivar, Venezuela, created and rented Jigsaw and Thanos ransomware to cybercriminals.
Costa Rica declares national emergency after Conti ransomware attacks
The Costa Rican President Rodrigo Chaves has declared a national emergency following cyber attacks from Conti ransomware group on multiple government bodies. BleepingComputer also observed Conti published most of the 672 GB dump that appears to contain data belonging to the Costa Rican government agencies. The declaration was signed into law by Chaves on Sunday, May 8th, same day as the economist and former Minister of Finance effectively became the country's 49th and current president.
Ukrainian Researcher Leaks Conti Ransomware Gang Data
A Ukrainian cybersecurity researcher has released a huge batch of data that came from the internal systems of the Conti ransomware gang. The researcher released the
TrickBot malware operation shuts down, devs move to BazarBackdoor
The TrickBot malware operation has shut down after its core developers move to the Conti ransomware gang to focus development on the stealthy BazarBackdoor and Anchor malware families.
Overview This week, the Sonicwall Capture Labs threat research team analyzed a ransomware calling itself Lighter Ransomware. Upon execution, it opens up a window with a countdown timer instructing the victim to reach out immediately […]
Change Healthcare ransomware attack disrupting industry nationwide
The reports keep coming in from across the country on how the Change Healthcare ransomware attack that first came to light on Feb. 21 has been impacting the healthcare sector. The case has been called the most severe cyberattack on the healthcare sector in history and has had a great impact since Change Healthcare, owned by UnitedHealth Group, processes 15 billion healthcare transactions annually, affecting 1 in 3 patient records.
Ransomware Recruitment Efforts Following Law Enforcement Disruption
In late 2023 and early 2024, the ransomware ecosystem experienced repeated disruption of its most prolific Ransomware-as-a-Service (RaaS) groups at the hands of international Law Enforcement (LE). Alphv’s dark web data leak site was seized, then unseized, then re-seized in a December 2023 law enforcement operation that seemingly failed to deter the group – until AlphV ultimately claimed to disband via an apparent exit scam, immediately following a high-profile attack against Change Healthcare in March 2024. LockBit experienced a far more dramatic and well-marketed disruption, “Operation Cronos,” in February 2024, leading to the compromise of its infrastructure, internal operational details, and data. While LockBit has ostensibly continued operations, its highly publicized disruption raises the question of whether the group will be able to continue operating and attracting affiliates at the level they once enjoyed.
Interesting Multi-Stage StopCrypt Ransomware Variant Propagating in the Wild
Overview The SonicWall Capture Labs threat research team recently observed an interesting variant of StopCrypt ransomware. The ransomware executes its malicious activities by utilizing multi-stage shellcodes before launching a final payload that contains the file […]
Exclusive: After LockBit’s takedown, its purported leader vows to hack on
This week, the Click Here podcast landed a rare interview with the purported leader of the LockBit ransomware group – he goes by the name LockBitSupp. He’s under pressure because last month an international police operation infiltrated the group and seized not just their platform, but their hacking tools, cryptocurrency accounts and source code ending a four year ransomware rampage.
GhostSec’s joint ransomware operation and evolution of their arsenal
Cisco Talos observed a surge in GhostSec, a hacking group’s malicious activities since this past year. GhostSec has evolved with a new GhostLocker 2.0 ransomware, a Golang variant of the GhostLocker ransomware.
LockBit ransomware affiliate gets four years in jail, to pay $860k
Russian-Canadian cybercriminal Mikhail Vasiliev has been sentenced to four years in prison by an Ontario court for his involvement in the LockBit ransomware operation. #Canada #Case #Computer #Court #InfoSec #Legal #LockBit #Prison #Ransomware #Security
Switzerland: Play ransomware leaked 65,000 government documents
The National Cyber Security Centre (NCSC) of Switzerland has released a report on its analysis of a data breach following a ransomware attack on Xplain, disclosing that the incident impacted thousands of sensitive Federal government files.
