Juli 2023
Titel
Preventing Web Application Access Control Abuse
Veröffentlicht
26. Juli 2023 23:10
Text
SUMMARY The Australian Signals Directorate’s Australian Cyber Security Centre (ACSC), U.S. Cybersecurity and Infrastructure Security Agency (CISA), and U.S. National Security Agency (NSA) are releasing this joint Cybersecurity Advisory to warn vendors, designers, and developers of web applications and organizations using web applications about insecure direct object reference (IDOR) vulnerabilities. ...
Titel
Threat Actors Exploiting Citrix CVE-2023-3519 to Implant Webshells
Veröffentlicht
20. Juli 2023 21:28
Text
SUMMARY The Cybersecurity and Infrastructure Security Agency (CISA) is releasing this Cybersecurity Advisory to warn network defenders about exploitation of CVE-2023-3519, an unauthenticated remote code execution (RCE) vulnerability affecting NetScaler (formerly Citrix) Application Delivery Controller (ADC) and NetScaler Gateway. In June 2023, threat actors exploited this vulnerability as a zero-day ...
Titel
Enhanced Monitoring to Detect APT Activity Targeting Outlook Online
Veröffentlicht
11. Juli 2023 23:55
Text
SUMMARY In June 2023, a Federal Civilian Executive Branch (FCEB) agency identified suspicious activity in their Microsoft 365 (M365) cloud environment. The agency reported the activity to Microsoft and the Cybersecurity and Infrastructure Security Agency (CISA), and Microsoft determined that advanced persistent threat (APT) actors accessed and exfiltrated unclassified Exchange ...
Titel
Increased Truebot Activity Infects U.S. and Canada Based Networks
Veröffentlicht
5. Juli 2023 23:30
Text
SUMMARY The Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), the Multi-State Information Sharing and Analysis Center (MS-ISAC), and the Canadian Centre for Cyber Security (CCCS) are releasing this joint Cybersecurity Advisory (CSA) in response to cyber threat actors leveraging newly identified Truebot malware variants against ...
Juni 2023
Titel
Understanding Ransomware Threat Actors: LockBit
Veröffentlicht
12. Juni 2023 18:22
Text
SUMMARY In 2022, LockBit was the most deployed ransomware variant across the world and continues to be prolific in 2023. Since January 2020, affiliates using LockBit have attacked organizations of varying sizes across an array of critical infrastructure sectors, including financial services, food and agriculture, education, energy, government and emergency ...
Titel
#StopRansomware: CL0P Ransomware Gang Exploits CVE-2023-34362 MOVEit Vulnerability
Veröffentlicht
6. Juni 2023 22:58
Text
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 ...
Mai 2023
Titel
People's Republic of China State-Sponsored Cyber Actor Living off the Land to Evade Detection
Veröffentlicht
23. Mai 2023 20:06
Text
Summary The United States and international cybersecurity authorities are issuing this joint Cybersecurity Advisory (CSA) to highlight a recently discovered cluster of activity of interest associated with a People’s Republic of China (PRC) state-sponsored cyber actor, also known as Volt Typhoon. Private sector partners have identified that this activity affects ...
Titel
#StopRansomware: BianLian Ransomware Group
Veröffentlicht
15. Mai 2023 18:29
Text
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 ...
Titel
Malicious Actors Exploit CVE-2023-27350 in PaperCut MF and NG
Veröffentlicht
10. Mai 2023 23:35
Text
SUMMARY The Federal Bureau of Investigation (FBI) and Cybersecurity and Infrastructure Security Agency (CISA) are releasing this joint Cybersecurity Advisory (CSA) in response to the active exploitation of CVE-2023-27350. This vulnerability occurs in certain versions of PaperCut NG and PaperCut MF and enables an unauthenticated actor to execute malicious code ...
Titel
Hunting Russian Intelligence “Snake” Malware
Veröffentlicht
8. Mai 2023 23:02
Text
SUMMARY The Snake implant is considered the most sophisticated cyber espionage tool designed and used by Center 16 of Russia’s Federal Security Service (FSB) for long-term intelligence collection on sensitive targets. To conduct operations using this tool, the FSB created a covert peer-to-peer (P2P) network of numerous Snake-infected computers worldwide. ...
April 2023
Titel
APT28 Exploits Known Vulnerability to Carry Out Reconnaissance and Deploy Malware on Cisco Routers
Veröffentlicht
17. April 2023 22:32
Text
APT28 accesses poorly maintained Cisco routers and deploys malware on unpatched devices using CVE-2017-6742. Overview and Context The UK National Cyber Security Centre (NCSC), the US National Security Agency (NSA), US Cybersecurity and Infrastructure Security Agency (CISA) and US Federal Bureau of Investigation (FBI) are releasing this joint advisory to ...
März 2023
Titel
#StopRansomware: LockBit 3.0
Veröffentlicht
15. März 2023 20:20
Text
SUMMARY Note: this joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail 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 ...
Titel
Threat Actors Exploit Progress Telerik Vulnerability in U.S. Government IIS Server
Veröffentlicht
13. März 2023 18:57
Text
SUMMARY From November 2022 through early January 2023, the Cybersecurity and Infrastructure Security Agency (CISA) and authoring organizations identified the presence of indicators of compromise (IOCs) at a federal civilian executive branch (FCEB) agency. Analysts determined that multiple cyber threat actors, including an APT actor, were able to exploit a ...
Titel
<a href="/news-events/cybersecurity-advisories/aa23-074a" hreflang="en">Threat Actors Exploit Progress Telerik Vulnerability in U.S. Government IIS Server</a>
Veröffentlicht
13. März 2023 18:57
Text
SUMMARY From November 2022 through early January 2023, the Cybersecurity and Infrastructure Security Agency (CISA) and authoring organizations identified the presence of indicators of compromise (IOCs) at a federal civilian executive branch (FCEB) agency. Analysts determined that multiple cyber threat actors, including an APT actor, were able to exploit a ...
Titel
Threat Actors Exploit Progress Telerik Vulnerabilities in Multiple U.S. Government IIS Servers
Veröffentlicht
13. März 2023 18:57
Text
SUMMARY From November 2022 through early January 2023, the Cybersecurity and Infrastructure Security Agency (CISA) and authoring organizations identified the presence of indicators of compromise (IOCs) at a federal civilian executive branch (FCEB) agency. Analysts determined that multiple cyber threat actors, including an advanced persistent threat (APT) actor, were able ...
Februar 2023
Titel
<a href="/news-events/cybersecurity-advisories/aa23-059a" hreflang="en">CISA Red Team Shares Key Findings to Improve Monitoring and Hardening of Networks</a>
Veröffentlicht
24. Februar 2023 20:04
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Titel
CISA Red Team Shares Key Findings to Improve Monitoring and Hardening of Networks
Veröffentlicht
24. Februar 2023 20:04
Text
SUMMARY The Cybersecurity and Infrastructure Security Agency (CISA) is releasing this Cybersecurity Advisory (CSA) detailing activity and key findings from a recent CISA red team assessment—in coordination with the assessed organization—to provide network defenders recommendations for improving their organization's cyber posture. Actions to take today to harden your local environment: ...
Titel
#StopRansomware: Royal Ransomware
Veröffentlicht
24. Februar 2023 18:30
Text
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 ...
Titel
<a href="/news-events/cybersecurity-advisories/aa23-061a" hreflang="en">#StopRansomware: Royal Ransomware</a>
Veröffentlicht
24. Februar 2023 18:30
Text
Titel
<a href="/news-events/cybersecurity-advisories/aa23-040a" hreflang="en">#StopRansomware: Ransomware Attacks on Critical Infrastructure Fund DPRK Malicious Cyber Activities</a>
Veröffentlicht
16. Februar 2023 21:45
Text
Titel
#StopRansomware: Ransomware Attacks on Critical Infrastructure Fund DPRK Malicious Cyber Activities
Veröffentlicht
16. Februar 2023 21:45
Text
SUMMARY Note: This Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and various ransomware threat actors. These #StopRansomware advisories detail historically and recently observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations ...
Titel
<a href="/news-events/cybersecurity-advisories/aa23-039a" hreflang="en">ESXiArgs Ransomware Virtual Machine Recovery Guidance</a>
Veröffentlicht
16. Februar 2023 19:50
Text
Titel
ESXiArgs Ransomware Virtual Machine Recovery Guidance
Veröffentlicht
16. Februar 2023 19:50
Text
Summary The Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Bureau of Investigation (FBI) are releasing this joint Cybersecurity Advisory (CSA) in response to the ongoing ransomware campaign, known as “ESXiArgs.” Malicious actors may be exploiting known vulnerabilities in VMware ESXi servers that are likely running unpatched and out-of-service ...
Titel
AA23-040A: #StopRansomware: Ransomware Attacks on Critical Infrastructure Fund DPRK Malicious Cyber Activities
Veröffentlicht
9. Februar 2023 19:00
Text
Original release date: February 9, 2023SummaryNote: This Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and various ransomware threat actors. These #StopRansomware advisories detail historically and recently observed tactics, techniques, and procedures (TTPs) and indicators of compromise ...
Titel
AA23-039A: ESXiArgs Ransomware Virtual Machine Recovery Guidance
Veröffentlicht
8. Februar 2023 17:14
Text
Original release date: February 8, 2023SummaryThe Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Bureau of Investigation (FBI) are releasing this joint Cybersecurity Advisory (CSA) in response to the ongoing ransomware campaign, known as “ESXiArgs.” Malicious actors may be exploiting known vulnerabilities in VMware ESXi servers that are likely ...

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