May 2024
Title
#StopRansomware: Black Basta
Published
May 10, 2024, 3:02 p.m.
Summary
SUMMARY Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations ...
April 2024
Title
#StopRansomware: Akira Ransomware
Published
April 17, 2024, 6:23 p.m.
Summary
SUMMARY Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations ...
February 2024
Title
#StopRansomware: Phobos Ransomware
Published
Feb. 26, 2024, 3:51 p.m.
Summary
SUMMARY Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations ...
Title
SVR Cyber Actors Adapt Tactics for Initial Cloud Access
Published
Feb. 23, 2024, 6:37 p.m.
Summary
How SVR-Attributed Actors are Adapting to the Move of Government and Corporations to Cloud Infrastructure OVERVIEW This advisory details recent tactics, techniques, and procedures (TTPs) of the group commonly known as APT29, also known as Midnight Blizzard, the Dukes, or Cozy Bear. The UK National Cyber Security Centre (NCSC) and ...
Title
Threat Actors Exploit Multiple Vulnerabilities in Ivanti Connect Secure and Policy Secure Gateways
Published
Feb. 21, 2024, 9:30 p.m.
Summary
SUMMARY The Cybersecurity and Infrastructure Security Agency (CISA) and the following partners (hereafter referred to as the authoring organizations) are releasing this joint Cybersecurity Advisory to warn that cyber threat actors are exploiting previously identified vulnerabilities in Ivanti Connect Secure and Ivanti Policy Secure gateways. CISA and authoring organizations appreciate ...
Title
Threat Actor Leverages Compromised Account of Former Employee to Access State Government Organization
Published
Feb. 14, 2024, 9:19 p.m.
Summary
SUMMARY The Cybersecurity and Infrastructure Security Agency (CISA) and the Multi-State Information Sharing & Analysis Center (MS-ISAC) conducted an incident response assessment of a state government organization’s network environment after documents containing host and user information, including metadata, were posted on a dark web brokerage site. Analysis confirmed that an ...
Title
PRC State-Sponsored Actors Compromise and Maintain Persistent Access to U.S. Critical Infrastructure
Published
Feb. 1, 2024, 9:37 p.m.
Summary
SUMMARY The Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), and Federal Bureau of Investigation (FBI) assess that People’s Republic of China (PRC) state-sponsored cyber actors are seeking to pre-position themselves on IT networks for disruptive or destructive cyberattacks against U.S. critical infrastructure in the event of a ...
January 2024
Title
Known Indicators of Compromise Associated with Androxgh0st Malware
Published
Jan. 12, 2024, 6:13 p.m.
Summary
SUMMARY The Federal Bureau of Investigation (FBI) and the Cybersecurity and Infrastructure Security Agency (CISA) are releasing this joint Cybersecurity Advisory (CSA) to disseminate known indicators of compromise (IOCs) and tactics, techniques, and procedures (TTPs) associated with threat actors deploying Androxgh0st malware. Multiple, ongoing investigations and trusted third party reporting ...
December 2023
Title
#StopRansomware: ALPHV Blackcat
Published
Dec. 19, 2023, 3:31 p.m.
Summary
SUMMARY Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations ...
Title
Enhancing Cyber Resilience: Insights from the CISA Healthcare and Public Health Sector Risk and Vulnerability Assessment
Published
Dec. 14, 2023, 1:24 a.m.
Summary
SUMMARY In January 2023, the Cybersecurity and Infrastructure Security Agency (CISA) conducted a Risk and Vulnerability Assessment (RVA) at the request of a Healthcare and Public Health (HPH) sector organization to identify vulnerabilities and areas for improvement. An RVA is a two-week penetration test of an entire organization, with one ...
Title
Russian Foreign Intelligence Service (SVR) Exploiting JetBrains TeamCity CVE Globally
Published
Dec. 12, 2023, 6:33 p.m.
Summary
SUMMARY The U.S. Federal Bureau of Investigation (FBI), U.S. Cybersecurity & Infrastructure Security Agency (CISA), U.S. National Security Agency (NSA), Polish Military Counterintelligence Service (SKW), CERT Polska (CERT.PL), and the UK’s National Cyber Security Centre (NCSC) assess Russian Foreign Intelligence Service (SVR) cyber actors—also known as Advanced Persistent Threat 29 ...
Title
#StopRansomware: Play Ransomware
Published
Dec. 11, 2023, 11:41 p.m.
Summary
SUMMARY Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations ...
Title
Russian FSB Cyber Actor Star Blizzard Continues Worldwide Spear-phishing Campaigns
Published
Dec. 6, 2023, 9:18 p.m.
Summary
The Russia-based actor is targeting organizations and individuals in the UK and other geographical areas of interest. OVERVIEW The Russia-based actor Star Blizzard (formerly known as SEABORGIUM, also known as Callisto Group/TA446/COLDRIVER/TAG-53/BlueCharlie) continues to successfully use spear-phishing attacks against targeted organizations and individuals in the UK, and other geographical areas ...
Title
Threat Actors Exploit Adobe ColdFusion CVE-2023-26360 for Initial Access to Government Servers
Published
Dec. 4, 2023, 7:05 p.m.
Summary
SUMMARY The Cybersecurity and Infrastructure Security Agency (CISA) is releasing a Cybersecurity Advisory (CSA) in response to confirmed exploitation of CVE-2023-26360 by unidentified threat actors at a Federal Civilian Executive Branch (FCEB) agency. This vulnerability presents as an improper access control issue impacting Adobe ColdFusion versions 2018 Update 15 (and ...
Title
IRGC-Affiliated Cyber Actors Exploit PLCs in Multiple Sectors, Including U.S. Water and Wastewater Systems Facilities
Published
Dec. 1, 2023, 11:21 p.m.
Summary
SUMMARY The Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), Environmental Protection Agency (EPA), and the Israel National Cyber Directorate (INCD)—hereafter referred to as "the authoring agencies"—are disseminating this joint Cybersecurity Advisory (CSA) to highlight continued malicious cyber activity against operational technology devices ...
November 2023
Title
#StopRansomware: LockBit 3.0 Ransomware Affiliates Exploit CVE 2023-4966 Citrix Bleed Vulnerability
Published
Nov. 21, 2023, 2:50 p.m.
Summary
SUMMARY Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations ...
Title
Scattered Spider
Published
Nov. 15, 2023, 3:55 p.m.
Summary
SUMMARY The Federal Bureau of Investigation (FBI) and Cybersecurity and Infrastructure Security Agency (CISA) are releasing this joint Cybersecurity Advisory (CSA) in response to recent activity by Scattered Spider threat actors against the commercial facilities sectors and subsectors. This advisory provides tactics, techniques, and procedures (TTPs) obtained through FBI investigations ...
Title
#StopRansomware: Rhysida Ransomware
Published
Nov. 14, 2023, 5:45 p.m.
Summary
SUMMARY Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders detailing various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations protect ...
October 2023
Title
Threat Actors Exploit Atlassian Confluence CVE-2023-22515 for Initial Access to Networks
Published
Oct. 13, 2023, 10:48 p.m.
Summary
SUMMARY The Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI), and Multi-State Information Sharing and Analysis Center (MS-ISAC) are releasing this joint Cybersecurity Advisory (CSA) in response to the active exploitation of CVE-2023-22515. This recently disclosed vulnerability affects certain versions of Atlassian Confluence Data Center and Server, ...
Title
#StopRansomware: AvosLocker Ransomware (Update)
Published
Oct. 10, 2023, 5:46 p.m.
Summary
SUMMARY Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations ...
Title
NSA and CISA Red and Blue Teams Share Top Ten Cybersecurity Misconfigurations
Published
Oct. 2, 2023, 9:42 p.m.
Summary
A plea for network defenders and software manufacturers to fix common problems. EXECUTIVE SUMMARY The National Security Agency (NSA) and Cybersecurity and Infrastructure Security Agency (CISA) are releasing this joint cybersecurity advisory (CSA) to highlight the most common cybersecurity misconfigurations in large organizations, and detail the tactics, techniques, and procedures ...
September 2023
Title
People's Republic of China-Linked Cyber Actors Hide in Router Firmware
Published
Sept. 26, 2023, 9:45 p.m.
Summary
Executive Summary The United States National Security Agency (NSA), the U.S. Federal Bureau of Investigation (FBI), the U.S. Cybersecurity and Infrastructure Security Agency (CISA), the Japan National Police Agency (NPA), and the Japan National Center of Incident Readiness and Strategy for Cybersecurity (NISC) (hereafter referred to as the “authoring agencies”) ...
Title
#StopRansomware: Snatch Ransomware
Published
Sept. 18, 2023, 11:27 p.m.
Summary
SUMMARY Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations ...
Title
Multiple Nation-State Threat Actors Exploit CVE-2022-47966 and CVE-2022-42475
Published
Sept. 6, 2023, 7:03 p.m.
Summary
SUMMARY The Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI), and Cyber National Mission Force (CNMF) identified the presence of indicators of compromise (IOCs) at an Aeronautical Sector organization as early as January 2023. Analysts confirmed that nation-state advanced persistent threat (APT) actors exploited CVE-2022-47966 to gain ...
August 2023
Title
Identification and Disruption of QakBot Infrastructure
Published
Aug. 29, 2023, 9:28 p.m.
Summary
SUMMARY The Cybersecurity and Infrastructure Security Agency (CISA) and Federal Bureau of Investigation (FBI) are releasing this joint Cybersecurity Advisory (CSA) to disseminate QakBot infrastructure indicators of compromise (IOCs) identified through FBI investigations as of August 2023. On August 25, FBI and international partners executed a coordinated operation to disrupt ...

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