Security News

Hackers Steal $200 Million Worth of Cryptocurrency Tokens from BitMart Exchange
2021-12-06 20:03

Cryptocurrency trading platform BitMart has disclosed a "Large-scale security breach" that it blamed on a stolen private key, resulting in the theft of more than $150 million in various cryptocurrencies. " Hot wallets, as opposed to their cold counterparts, are connected to the internet and allow cryptocurrency owners to receive and send tokens.

Microsoft Exchange servers hacked to deploy BlackByte ransomware
2021-12-01 16:21

The BlackByte ransomware gang is now breaching corporate networks by exploiting Microsoft Exchange servers using the ProxyShell vulnerabilities. Since researchers disclosed the vulnerabilities, threat actors have begun to exploit them to breach servers and install web shells, coin miners, and ransomware.

S3 Ep60: Exchange exploit, GoDaddy breach and cookies made public [Podcast]
2021-11-25 19:38

" Cybersecurity tips for the holiday season and beyond. Tech history: What do you mean, "It uses a mouse?" Don't make your cookies public! Oh! No! DDoS attack in progress - unfurl the umbrellas!

Check your patches – public exploit now out for critical Exchange bug
2021-11-23 20:36

This bug could be exploited for unauthorised remote code execution on Microsoft Exchange 2016 and 2019, and was patched in the November 2021 Patch Tuesday updates. The silver lining, if there is such a thing for any zero-day hole, is that the attacker first needs to be authenticated to the Exchange server.

Exploit released for Microsoft Exchange RCE bug, patch now
2021-11-22 22:04

Proof-of-concept exploit code has been released online over the weekend for an actively exploited high severity vulnerability impacting Microsoft Exchange servers.The security bug tracked as CVE-2021-42321 impacts on-premises Exchange Server 2016 and Exchange Server 2019 and was patched by Microsoft during this month's Patch Tuesday.

Microsoft Exchange servers hacked in internal reply-chain attacks
2021-11-20 17:55

Threat actors are hacking Microsoft Exchange servers using ProxyShell and ProxyLogon exploits to distribute malware and bypass detection using stolen internal reply-chain emails. TrendMicro researchers have discovered an interesting tactic used of distributing malicious email to a company's internal users using the victim's compromised Microsoft exchange servers.

Exchange, Fortinet Flaws Being Exploited by Iranian APT, CISA Warns
2021-11-17 17:04

The Iranian APT has been exploiting Fortinet vulnerabilities since at least March 2021 and a Microsoft Exchange ProxyShell vulnerability since at least October 2021, according to the alert. In keeping with what CISA described on Wednesday, MSTIC has seen the Iran-linked Phosphorous group - aka a number of names, including Charming Kitten, TA453, APT35, Ajax Security Team, NewsBeef and Newscaster - globally target the Exchange and Fortinet flaws "With the intent of deploying ransomware on vulnerable networks."

US, UK warn of Iranian hackers exploiting Microsoft Exchange, Fortinet
2021-11-17 14:44

"FBI and CISA have observed this Iranian government-sponsored APT group exploit Fortinet vulnerabilities since at least March 2021 and a Microsoft Exchange ProxyShell vulnerability since at least October 2021 to gain initial access to systems in advance of follow-on operations, which include deploying ransomware," CISA said. The Iranian state hackers focus their attacks on US critical infrastructure sectors and Australian organizations.

Microsoft Issues Patches for Actively Exploited Excel, Exchange Server 0-Day Bugs
2021-11-09 22:24

Microsoft has released security updates as part of its monthly Patch Tuesday release cycle to address 55 vulnerabilities across Windows, Azure, Visual Studio, Windows Hyper-V, and Office, including fixes for two actively exploited zero-day flaws in Excel and Exchange Server that could be abused to take control of an affected system. The most critical of the flaws are CVE-2021-42321 and CVE-2021-42292, each concerning a post-authentication remote code execution flaw in Microsoft Exchange Server and a security bypass vulnerability impacting Microsoft Excel versions 2013-2021 respectively.

Microsoft Issues Patches for Actively Exploited Excel, Exchange Server 0-Day Bugs
2021-11-09 22:24

Microsoft has released security updates as part of its monthly Patch Tuesday release cycle to address 55 vulnerabilities across Windows, Azure, Visual Studio, Windows Hyper-V, and Office, including fixes for two actively exploited zero-day flaws in Excel and Exchange Server that could be abused to take control of an affected system. The most critical of the flaws are CVE-2021-42321 and CVE-2021-42292, each concerning a post-authentication remote code execution flaw in Microsoft Exchange Server and a security bypass vulnerability impacting Microsoft Excel versions 2013-2021 respectively.