< ciso
brief />
Tag Banner

All news with #initial access broker tag

17 articles

Storm-1175 Targets Vulnerable Web-Facing Assets with Medusa

🔒Storm-1175 conducts high-tempo ransomware campaigns that rapidly weaponize recently disclosed and, in some cases, pre-disclosure zero-day vulnerabilities to gain initial access to web-facing systems. After exploitation the actor moves quickly to establish persistence, perform credential theft, tamper with security controls, and exfiltrate data before deploying Medusa ransomware. Microsoft observed intrusions affecting healthcare, education, professional services, and finance across Australia, the United Kingdom, and the United States, often completing impact within days or less. Recommended defenses include perimeter asset discovery, robust patching, RMM hardening, and tamper protection for endpoint security.
read more →

Tax Search Ads Deliver ScreenConnect EDR Killer Campaign

⚠️ A large-scale malvertising campaign since January 2026 uses Google Ads to deliver rogue installers for ConnectWise ScreenConnect, ultimately installing a BYOVD EDR killer named HwAudKiller that disables security tools. The actor stacks commercial cloaking services (Adspect and JustCloakIt) and abuses a legitimately signed Huawei audio driver to terminate AV processes from kernel mode. Huntress observed over 60 malicious ScreenConnect sessions and multiple RMM backdoors, indicating pre-ransomware or initial access broker behavior.
read more →

Yanluowang Broker Sentenced to 81 Months; Restitution

🔒 A Russian national, 26-year-old Aleksey Olegovich Volkov (aliases "chubaka.kor" and "nets"), was sentenced to 81 months in U.S. federal prison after pleading guilty to acting as an initial access broker for the Yanluowang ransomware operation. Between July 2021 and November 2022 he sold corporate network access to at least eight U.S. companies, enabling affiliates to deploy ransomware and demand payments. The FBI recovered chat logs, stolen data, victim credentials, and evidence of ransom negotiations after seizing a server tied to the gang, and traced Volkov through Apple iCloud, cryptocurrency exchange records, and social media. He was arrested in Italy in January 2024, extradited to the U.S., and ordered to pay over $9.16 million in restitution and forfeit equipment used in the crimes.
read more →

Russian Initial Access Broker Sentenced to 81 Months

🔒 Aleksei Volkov, a Russian initial access broker tied to dozens of ransomware incidents that produced more than $9m in documented victim losses, has been sentenced to 81 months in a US federal prison. He pleaded guilty to offenses including trafficking in access information, access device fraud and aggravated identity theft. Volkov was linked to Yanluowang and other cybercrime groups, and has agreed to pay at least $9.2m in restitution.
read more →

U.S. Sentences Russian Hacker 6.75 Years for Ransomware Role

🔒 Aleksei Olegovich Volkov, a 26-year-old Russian national, was sentenced in the U.S. to 81 months in prison after pleading guilty to facilitating dozens of ransomware attacks as an initial access broker. Authorities say he helped breach networks and sell access to ransomware groups, resulting in over $9 million in actual losses and more than $24 million in intended losses. He was arrested in Italy in January 2024, extradited to the U.S., and agreed to pay restitution and forfeit tools used in the crimes.
read more →

FBI Seeks Help from Gamers Over Steam Malware Campaign

🕵️ The FBI’s Seattle Division is asking gamers who unintentionally downloaded malware via the Steam platform to assist an ongoing investigation into a campaign active between May 2024 and January 2026. Investigators say several titles — including BlockBlasters, Chemia, Dashverse/DashFPS, Lampy, Lunara, PirateFi, and Tokenova — have been identified as distribution points and are requesting affected users complete a short questionnaire. The FBI is collecting information on pre- and post-download communications, financial losses, and crypto wallet or bank account details; responses are voluntary, may result in follow-up contact, and victims’ identities will be kept confidential.
read more →

TA584 Adopts Tsundere Bot to Enable Ransomware Access

🔐 Proofpoint researchers report that prolific initial access broker TA584 has begun using Tsundere Bot alongside the XWorm RAT to gain footholds that could lead to ransomware. The group ramped up activity in late 2025, expanding beyond North America and the UK to target Germany, other European countries and Australia. Their emails leverage aged compromised accounts delivered via SendGrid and Amazon SES, unique geofenced URLs, redirect chains and obfuscated PowerShell that loads payloads in memory to evade static detection.
read more →

Cybercrime Inc. 2026: Industrialized Threats for CISOs

🔒 Cybercriminals now operate like businesses—highly specialized, service-oriented, and ROI-driven—using models such as RaaS and initial access brokers to scale attacks. This industrialization, amplified by AI and automation, forces a shift from reactive detection to proactive prevention and identity-first controls. CISOs must prioritize governance, supply-chain resilience, defensive automation, and strategic partnerships to manage risk amid talent and budget shortfalls.
read more →

Jordanian Pleads Guilty to Selling Network Access to Firms

🔒 Feras Khalil Ahmad Albashiti (known online as "r1z") pleaded guilty to selling access credentials to the networks of at least 50 companies. Extradited from Georgia in July 2024, he admitted selling access to an undercover law enforcement officer for cryptocurrency on May 19, 2023. He faces up to 10 years in prison and fines; sentencing is set for May 11, 2026.
read more →

IAB Abuses EDR and Windows Utilities for Stealthy Malware

🔐Storm-0249, an initial access broker, is abusing endpoint detection and response (EDR) components and trusted Windows utilities to execute malware stealthily. In one analyzed incident the actor used social engineering to run curl commands that installed a malicious MSI which drops a DLL placed beside the legitimate SentinelAgentWorker.exe, then performs DLL sideloading to run attacker code inside the signed EDR process. Additional payloads are piped into memory via PowerShell from a spoofed domain, avoiding disk-based detection. Researchers recommend behavior-based detection for trusted processes loading unsigned DLLs and stricter controls on curl, PowerShell, and living-off-the-land binaries.
read more →

RomCom Uses SocGholish to Deliver Mythic Agent to US Firms

🔒 Arctic Wolf Labs observed a targeted September 2025 campaign in which the Russia-aligned RomCom group used fake browser-update prompts to deliver the Mythic Agent implant via a classic SocGholish chain. Researchers say this is the first observed instance of RomCom pairing SocGholish initial access with a Mythic C2-based loader. The intrusion was stopped before impact, and Arctic Wolf published IOCs and mitigation guidance.
read more →

Initial Access Broker Pleads Guilty in Yanluowang Case

🔒Aleksey Olegovich Volkov, a 25-year-old Russian accused of acting as an initial access broker, is set to plead guilty in a federal case tied to the Yanluowang ransomware group. Prosecutors say he sold administrator credentials to operators and received over $256,000, while victims paid ransoms up to $1 million. Investigators traced Bitcoin flows to wallets Volkov verified with identity documents, and his plea includes more than $9 million in restitution.
read more →

Yanluowang Broker Pleads Guilty to Ransomware Access

🔒 Aleksey Olegovich Volkov, a Russian national who used aliases including chubaka.kor and nets, has agreed to plead guilty to acting as an initial access broker for the Yanluowang ransomware group. Between July 2021 and November 2022 he sold credentials that enabled intrusions at eight U.S. companies and facilitated ransom demands ranging from $300,000 to $15 million. FBI warrants seized server logs, stolen data, chat histories and iCloud records linking Volkov to the scheme and to partial Bitcoin payments. He faces up to 53 years in prison and must pay more than $9.1 million in restitution.
read more →

Yanluowang Access Broker Pleads Guilty in Ransomware Case

🔒 A Russian national has pleaded guilty to acting as an initial access broker for the Yanluowang ransomware group, admitting to selling corporate network access used in attacks on at least eight U.S. companies between July 2021 and November 2022. FBI searches of a server tied to the operation recovered chat logs, stolen files, and victim credentials that linked payments and access to the defendant. Investigators traced the suspect through Apple iCloud data, cryptocurrency exchange records, and social media accounts, and blockchain analysis tied portions of ransom payments to addresses he provided. He faces decades in prison and more than $9.1 million in restitution.
read more →

China-linked Hackers Reuse Legacy Flaws to Backdoor Targets

🔍 Symantec and Carbon Black attributed a mid‑April 2025 intrusion to a China-linked threat cluster that targeted a U.S. nonprofit engaged in influencing policy, using mass scanning and multiple legacy exploits (including CVE-2021-44228, CVE-2017-9805, and Atlassian flaws) to gain initial access. The intruders established stealthy persistence via scheduled tasks that invoked legitimate binaries (msbuild.exe, csc.exe), injected code to reach a C2 at 38.180.83[.]166, and sideloaded a DLL through a Vipre component to run an in-memory RAT. Researchers linked the loader to China-aligned clusters such as Salt Typhoon and warned of broader reuse of legacy vulnerabilities and IIS/ASP.NET misconfigurations for long-term backdoors.
read more →

Attackers Exploit ScreenConnect Features for Network Access

🔒 DarkAtlas researchers warn that APT groups are leveraging legitimate RMM platforms to gain initial access, increasingly favoring ScreenConnect as it evades basic detection. Attackers abuse features like unattended access, VPN, REST API and file transfer, deploy in-memory installers that leave little disk artefacts, and register persistent services such as ScreenConnect.WindowsClient.exe. Defenders should monitor invite links, config files, in-memory activity and specific event IDs for effective DFIR.
read more →

MedusaLocker RaaS Recruits Penetration Testers Globally

🔒 MedusaLocker, a ransomware-as-a-service (RaaS) group active since 2019, has posted a dark web job advert openly recruiting penetration testers and insiders who already have direct access to corporate networks. The advert explicitly instructs applicants not to apply unless they possess network access, signalling a preference for initial access brokers and company insiders. CISA previously linked MedusaLocker to exploitation of RDP vulnerabilities, and the group’s tactic highlights the blurred line between legitimate pentesting and criminal activity. Organisations should prioritise layered defenses, authorised penetration testing, and strict controls over remote access and privileged accounts.
read more →