Microsoft Exchange Server Remote Code Execution Vulnerability
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
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microsoft exchange server 2013 |
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microsoft exchange server 2016 |
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microsoft exchange server 2019 |
Exbyte is the latest tool developed by ransomware attackers to expedite data theft from victims.
Posted: 21 Oct, 20228 Min ReadThreat Intelligence SubscribeFollowtwitterlinkedinExbyte: BlackByte Ransomware Attackers Deploy New Exfiltration ToolExbyte is the latest tool developed by ransomware attackers to expedite data theft from victims.Symantec’s Threat Hunter Team has discovered that at least one affiliate of the BlackByte ransomware (Ransom.Blackbyte) operation has begun using a custom data exfiltration tool during their attacks. The malware (...
Two-factor or multi-factor authentication is used to secure organizations and accounts from attackers, making it a problem for malicious actors. Recent attacks show how they are attempting to bypass or avoid it completely.
Posted: 5 May, 20218 Min ReadThreat Intelligence SubscribeMulti-Factor Authentication: Headache for Cyber Actors Inspires New Attack TechniquesTwo-factor or multi-factor authentication is used to secure organizations and accounts from attackers, making it a problem for malicious actors. Recent attacks show how they are attempting to bypass or avoid it completely.In recent years two-factor or multi-factor authentication (MFA) has been touted as the way to...
Symantec's Intrusion Protection technology will block all attempted exploits of critical vulnerabilities.
Posted: 8 Mar, 20214 Min ReadThreat Intelligence SubscribeHow Symantec Stops Microsoft Exchange Server AttacksSymantec's Intrusion Protection technology will block all attempted exploits of critical vulnerabilities. Users of Microsoft Exchange Server are advised to update to the latest version immediately, as a growing number of attackers are attempting to exploit four recently patched zero-day vulnerabilities in the software. Microsoft released emergenc...
Introduction Knowledge is our best weapon in the fight against cybercrime. An understanding of how various gangs operate and what tools they use helps build competent defenses and investigate incidents. This report takes a close look at the history of the Cuba group, and their attack tactics, techniques and procedures. We hope this article will help you to stay one step ahead of threats like this one. Cuba ransomware gang Cuba data leak site The group’s offensives first got on our radar in lat...
Bugs in Visual Studio, Visual Studio Code are the least of it US National Security Council urges review of Exchange Servers in wake of Hafnium attack Delayed, overbudget and broken. Of course Microsoft's finest would be found in NASA's Orion
Patch Tuesday A week after Microsoft warned that four zero-day flaws and three others in its Exchange Server were being actively exploited and issued out-of-band remediation, the cloudy Windows biz has delivered software fixes to address 82 other vulnerabilities as part of its monthly Patch Tuesday ritual. All told, that makes 89 CVEs for the month, 14 of which have been deemed critical. Microsoft says two of these vulnerabilities (CVE-2021-26411 and CVE-2021-27077) are publicly known and five a...
Topics Security Off-Prem On-Prem Software Offbeat Vendor Voice Vendor Voice Resources Malicious cyber actors go after 2021's biggest misses, spend less time on the classics
Security flaws in Log4j, Microsoft Exchange, and Atlassian's workspace collaboration software were among the bugs most frequently exploited by "malicious cyber actors" in 2021 , according to a joint advisory by the Five Eyes nations' cybersecurity and law enforcement agencies. It's worth noting that 11 of the 15 flaws on the list were disclosed in 2021, as previous years' lists often found miscreants exploiting the older vulns for which patches had been available for years. Of course, the US Cyb...
Topics Security Off-Prem On-Prem Software Offbeat Vendor Voice Vendor Voice Resources Tell us it’s Russia without telling us it’s Russia
Spies for months hid inside a US military contractor's enterprise network and stole sensitive data, according to a joint alert from the US government's Cybersecurity and Infrastructure Security Agency (CISA), the FBI, and NSA. The intruders somehow broke into the defense org's Microsoft Exchange Server – the Feds still aren't sure how – and rummaged through mailboxes for hours and used a compromised admin account to query Exchange via its EWS API. The snoops also ran Windows commands to lear...
Topics Security Off-Prem On-Prem Software Offbeat Vendor Voice Vendor Voice Resources Now that's sticker shock
Internet snoops has been caught concealing spyware in an old Windows logo in an attack on governments in the Middle East. The Witchetty gang used steganography to stash backdoor Windows malware, dubbed Backdoor.Stegmap, in the bitmap image. "Although rarely used by attackers, if successfully executed, steganography can be leveraged to disguise malicious code in seemingly innocuous-looking image files," researchers at Symantec's Threat Hunter Team wrote this week. "Disguising the payload in this ...
Topics Security Off-Prem On-Prem Software Offbeat Vendor Voice Vendor Voice Resources Now that's sticker shock
Internet snoops have been caught concealing spyware in an old Windows logo in an attack on governments in the Middle East. The Witchetty gang used steganography to stash backdoor Windows malware – dubbed Backdoor.Stegmap – in the bitmap image. "Although rarely used by attackers, if successfully executed, steganography can be leveraged to disguise malicious code in seemingly innocuous-looking image files," researchers at Symantec's Threat Hunter Team wrote this week. "Disguising the payload i...
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