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Guyana National CIRT

The Guyana National Computer Incident Response Team (GNCIRT) seeks to provide technical assistance to public agencies to prevent and respond effectively to information security incidents of national importance.

Contact Us

(592)231-6860 or

(592)231-8825 Ext:236 (business hours)

Email

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ALERT

AL2021_03 Multiple Security Updates Released for Microsoft Exchange Server (3rd March, 2021)

Microsoft has released security updates on the 2nd March 2021, addressing vulnerabilities (CVE-2021-26855, CVE-2021-26857, CVE-2021-26858 and CVE-2021-27065) found in the Microsoft Exchange Server.

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ADVISORY

ADV2021_29 Cisco Security Updates (04th March 2021)

Cisco published security updates on 04th March 2021, addressing vulnerabilities in the following products. It is recommended that you take the necessary precautions by ensuring your products are always updated.

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TIP

T2021_04 Zeoticus 2.0 Ransomware (25th February 2021)

Zeoticus ransomware was first spotted for sale in various underground markets and forums in early 2020. It is a ransomware that targets all versions of Microsoft Windows Operating Systems without any dependence on a C2 (Command & Control)

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Advisories

Mar-05-2021 - ADV2021_29 Cisco Security Updates (04th March 2021)
Mar-03-2021 - ADV2021_28 Google Releases Security Updates for Chrome (3rd March, 2021)
Mar-02-2021 - ADV2021_27 Google Android OS Security Updates (01st March 2021)
Mar-01-2021 - ADV2021_26 Ubuntu Security Updates (25th February 2021)
Mar-01-2021 - ADV2021_25 Cisco Security Updates (24th February 2021)

Alerts

Mar-03-2021 - AL2021_03 Multiple Security Updates Released for Microsoft Exchange Server (3rd March, 2021)
Feb-12-2021 - AL2021_02 Microsoft Releases Security Updates Affecting TCP/IP:  CVE-2021-24074, CVE-2021-24094, and CVE-2021-24086. (09th February 2021)
Jan-28-2021 - AL2021_01 Heap Buffer Overflow Vulnerability in Sudo (27th January, 2021)
Dec-15-2020 - Adrozek Malware Hijacking Chrome, Firefox, Edge, Yandex Browsers (11th December, 2020)
Dec-15-2020 - SolarWinds Security Alert (14th December 2020)

Tips

Mar-01-2021 - T2021_04 Zeoticus 2.0 Ransomware (25th February 2021)
Feb-15-2021 - T2021_03 Social Networking and your Safety (15th January 2021)
Feb-03-2021 - T2021_02 RYUK Ransomware (27th January 2021)
Jan-26-2021 - T2021_01 WastedLocker Targeted Ransomware (26_January 2021)
Dec-02-2020 - Block Email Forwarding to Stop BEC Attackers (2nd December, 2020)

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Guyana National CIRT is a unit under the National Data Management Authority , Office of the Prime Minister