network security

  1. News

    4056318 - Guidance for securing AD DS account used by Azure AD Connect for directory synchronization - Version: 1.0

    Revision Note: V1.0 (December 12, 2017): Advisory published. Summary: Microsoft is releasing this security advisory to provide information regarding security settings for the AD DS (Active Directory Domain Services) account used by Azure AD Connect for directory synchronization. This advisory...
  2. News

    TA17-318B: HIDDEN COBRA – North Korean Trojan: Volgmer

    Original release date: November 14, 2017 Systems Affected Network systems Overview This joint Technical Alert (TA) is the result of analytic efforts between the Department of Homeland Security (DHS) and the Federal Bureau of Investigation (FBI). Working with U.S. government partners, DHS...
  3. News

    TA17-318A: HIDDEN COBRA – North Korean Remote Administration Tool: FALLCHILL

    Original release date: November 14, 2017 Systems Affected Network systems Overview This joint Technical Alert (TA) is the result of analytic efforts between the Department of Homeland Security (DHS) and the Federal Bureau of Investigation (FBI). Working with U.S. government partners, DHS...
  4. News

    TA17-293A: Advanced Persistent Threat Activity Targeting Energy and Other Critical...

    Original release date: October 20, 2017 Systems Affected Domain Controllers File Servers Email Servers Overview This joint Technical Alert (TA) is the result of analytic efforts between the Department of Homeland Security (DHS) and the Federal Bureau of Investigation (FBI). This alert...
  5. DaveBrock

    Windows 7 Firewall. How to only allow Email internet access specific network

    Hi, I am running Windows 7 Professional 64 bit. Is there some way I can use Windows Firewall to only allow access to the internet for email (I use outlook 2013) and also say Chrome Browser? Occasionally I use my iPhone to tether my windows 7 laptop, but I have a very limited data plan. I...
  6. News

    TA17-164A: HIDDEN COBRA – North Korea’s DDoS Botnet Infrastructure

    Original release date: June 13, 2017 | Last revised: July 07, 2017 Systems Affected Networked Systems Overview This joint Technical Alert (TA) is the result of analytic efforts between the Department of Homeland Security (DHS) and the Federal Bureau of Investigation (FBI). This alert...
  7. News

    TA17-156A: Reducing the Risk of SNMP Abuse

    Original release date: June 05, 2017 Systems Affected SNMP enabled devices Overview The Simple Network Management Protocol (SNMP) may be abused to gain unauthorized access to network devices. SNMP provides a standardized framework for a common language that is used for monitoring and...
  8. News

    TA16-288A: Heightened DDoS Threat Posed by Mirai and Other Botnets

    Original release date: October 14, 2016 | Last revised: November 30, 2016 Systems Affected Internet of Things (IoT)—an emerging network of devices (e.g., printers, routers, video cameras, smart TVs) that connect to one another via the Internet, often automatically sending and receiving data...
  9. News

    TA16-250A: The Increasing Threat to Network Infrastructure Devices and Recommended Mitigations

    Original release date: September 06, 2016 | Last revised: September 28, 2016 Systems Affected Network Infrastructure Devices Overview The advancing capabilities of organized hacker groups and cyber adversaries create an increasing global threat to information systems. The rising threat...
  10. News

    TA17-181A: Petya Ransomware

    Original release date: July 01, 2017 Systems Affected Microsoft Windows operating systems Overview On June 27, 2017, NCCIC was notified of Petya ransomware events occurring in multiple countries and affecting multiple sectors. Petya ransomware encrypts the master boot records of infected...
  11. News

    TA17-164A: HIDDEN COBRA – North Korea’s DDoS Botnet Infrastructure

    Original release date: June 13, 2017 Systems Affected Networked Systems Overview This joint Technical Alert (TA) is the result of analytic efforts between the Department of Homeland Security (DHS) and the Federal Bureau of Investigation (FBI). This alert provides technical details on the...
  12. yusufks

    Windows 7 Cannot Access XP from Windows 7/8 after updating windows update MS17-010

    Hello guys...! We use various OS such as Windows XP, Windows 7, Windows 8 in our office. In the beginning there's no networking problem, Windows XP can access to higher Windows, and Windows 7/8 can access Windows XP. Everything's fine until installing windows update MS17-010 on last Monday for...
  13. News

    TA17-117A: Intrusions Affecting Multiple Victims Across Multiple Sectors

    Original release date: April 27, 2017 Systems Affected Networked Systems Overview The National Cybersecurity and Communications Integration Center (NCCIC) has become aware of an emerging sophisticated campaign, occurring since at least May 2016, that uses multiple malware implants. Initial...
  14. B

    Does a local password increase security against remote attacks?

    I have a user account password on my Windows 10 machine at home and am wondering whether this actually increases security against remote attackers or if it's solely for protecting against local attacks.
  15. News

    TA17-075A: HTTPS Interception Weakens TLS Security

    Original release date: March 16, 2017 Systems Affected All systems behind a hypertext transfer protocol secure (HTTPS) interception product are potentially affected. Overview Many organizations use HTTPS interception products for several purposes, including detecting malware that uses HTTPS...
  16. News

    MS17-010 - Critical: Security Update for Microsoft Windows SMB Server (4013389) - Version: 1.0

    Severity Rating: Critical Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves vulnerabilities in Microsoft Windows. The most severe of the vulnerabilities could allow remote code execution if an attacker sends specially crafted messages to a Windows...
  17. News

    Security trends & Windows 10

    Cybersecurity threats both new and known, from Advanced Persistent Threats (APT), to the Internet of Things (IoT), to the shortage of cyberworkers, threaten us each day. To help protect ourselves and our customers, we mobilize threat intelligence and machine learning, a mindset of “assume...
  18. News

    Microsoft security advisory: Update for disabling RC4

    Continue reading...
  19. P

    Why are there many "Allow" rules at first time WinFirewall usage? How to reset to initial rule set?

    After having used for some years another firewall I considered now to switch to MS built in Windows Firewall (in Win 7 Pro). So I deinstalled the old FW and enabled the MS WF. When I go now to wf.msc e.g into "Inbound rules" section then there are much to my surprise many "Allow" rules for...
  20. News

    TA16-250A: The Increasing Threat to Network Infrastructure Devices and Recommended Mitigations

    Original release date: September 06, 2016 Systems Affected Network Infrastructure Devices Overview The advancing capabilities of organized hacker groups and cyber adversaries create an increasing global threat to information systems. The rising threat levels place more demands on security...
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