Attacks

IOTW: Ransomware gang allegedly hacks Ring doorbells

Russia-linked ransomware gang ALPHV has claimed to have launched a cyber attack against Amazon-owned domestic security company, Ring. Ring, which makes doorbells with video and sound recording capabilities, has denied that the hack took place. ALPHV, however, posted on the dark web about the hack and is threatening to release data stolen during the breach. The gang, which is responsible for creating BlackCat malware, posted a picture of the Ring logo on its website alongside…

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FBI, CISA, and MS-ISAC Release #StopRansomware: LockBit 3.0

The Federal Bureau of Investigation (FBI), CISA, and the Multi-State Information Sharing and Analysis Center (MS-ISAC) has released a joint cybersecurity advisory (CSA), #StopRansomware: LockBit 3.0. This joint advisory details known indicators of compromise (IOCs) and tactics, techniques, and procedures (TTPs) that FBI investigations correlated with LockBit 3.0 ransomware as recently as March 2023. LockBit 3.0 functions as an affiliate-based ransomware variant and is a continuation of LockBit 2.0 and LockBit. CISA encourages network defenders…

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Rubrik Confirms Data Theft in GoAnywhere 0-Day Attack

While typically it is recommended to maintain good threat intelligence and an adequate patching schedule, neither of these recommendations would apply in this case as this vulnerability was exploited as a 0-day prior to the patch that was released in February. The best defense against 0-day vulnerabilities is to employ a defense-in-depth strategy. While it won’t stop the 0-day, employing this strategy makes it much more likely to detect the attack at an earlier step…

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Cybercriminals Exploit SVB Collapse to Steal Money and Data

The wisest course of action for former SVB customers is to maintain composure and adhere to the FDIC’s and the U.S. government’s established communication channels. Avoid emails from strange websites and double-check any requests for bank account changes or payments in regards to SVB accounts. Any requests for changes or payments should be verified with a direct communication using a phone call instead of email. Email accounts may be compromised, and all requests should be…

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Microsoft Fixes Outlook Zero-day Used by Russian Attackers Since April 2022

Microsoft urges customers to immediately patch their systems against CVE-2023-23397 or add users to the Protected Users group in Active Directory and block outbound SMB (TCP port 445) as a temporary mitigation to minimize the impact of the attacks. Redmond also released a dedicated PowerShell script to help admins check if any users in their Exchange environment have been targeted using this Outlook vulnerability. It “checks Exchange messaging items (mail, calendar and tasks) to see…

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CISA released four Industrial…

CISA released four Industrial Control Systems (ICS) advisories on March 14, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. CISA encourages users and administrators to review the newly released ICS advisories for technical details and mitigations: ICSA-23-073-01 Omron CJ1m PLC ICSA-23-073-02 Autodesk FBX SDK ICSA-23-073-03 GE iFIX ICSA-23-073-04 AVEVA Plant SCADA and AVEVA Telemetry Server

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Mozilla has released security…

Mozilla has released security updates to address vulnerabilities in Firefox 111 and Firefox ESR 102.9. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review Mozilla’s security advisories for Firefox 111 and Firefox ESR 102.9 for more information and apply the necessary updates. Please share your thoughts. We recently updated our anonymous Product Feedback Survey and we’d welcome your feedback.

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Today, the CISA, Federal Bureau of…

Today, the CISA, Federal Bureau of Investigation (FBI), and Multi-State Information Sharing and Analysis Center (MS-ISAC) released a joint Cybersecurity Advisory (CSA), Threat Actors Exploit Progress Telerik Vulnerability in U.S. Government IIS Server. This joint CSA provides IT infrastructure defenders with tactics, techniques, and procedures (TTPs), indicators of compromise (IOCs), and methods to detect and protect against similar, successful CVE-2019-18935 exploitation. As detailed in the advisory, CISA analysts determined that multiple cyber threat actors, including…

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WaterISAC Releases Advisory for Microsoft DCOM Patch

The Water Information Sharing and Analysis Center (WaterISAC) has released an advisory, Potential for Mandatory Microsoft DCOM Patch to Disrupt SCADA. ICS/OT/SCADA engineers and operators should assess the use of the Distributed Component Object Model (DCOM) protocol in their industrial environments. According to WaterISAC, “failure to address could result in loss of critical communications between impacted ICS/OT/SCADA devices.” CISA urges operators to review the WaterISAC advisory and apply recommended compensating controls. See Microsoft KB5004442—Manage changes for…

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CISA Releases SCuBA Hybrid Identity Solutions Architecture Guidance Document for Public Comment

CISA has released a draft Secure Cloud Business Applications (SCuBA) Hybrid Identity Solutions Architecture guidance document for public comment. The request for comment period is open until April 17, 2023. Comments may be submitted to CyberSharedServices@cisa.dhs.gov. In accordance with Executive Order 14028, CISA’s SCuBA project aims to develop consistent, effective, modern, and manageable security that will help secure agency information assets stored within cloud operations. This guidance will help federal civilian departments and agencies securely…

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