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On the Irish Health Services Executive Hack

Schneier on Security

It had no documented cyber incident response runbooks or IT recovery plans (apart from documented AD recovery plans) for recovering from a wide-scale ransomware event. Antivirus software triggered numerous alerts after detecting Cobalt Strike activity but these were not escalated.

Antivirus 355
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No, I Did Not Hack Your MS Exchange Server

Krebs on Security

26, Shadowserver saw an attempt to install a new type of backdoor in compromised Exchange Servers, and with each hacked host it installed the backdoor in the same place: “ /owa/auth/babydraco.aspx. Oddly, none of the several dozen antivirus tools available to scan the file at Virustotal.com currently detect it as malicious.

Hacking 363
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GUEST ESSAY – Notable events in hacking history that helped transform cybersecurity assessment

The Last Watchdog

Here are five notable historical events that influenced cybersecurity assessment and transformed it into what it is today: The Battle of Midway (1942). It’s clear that when technology develops, people find creative ways to cause mass disruption, increasing the need for antivirus protection and firewalls.

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Beware of Fake Amnesty International Antivirus for Pegasus that Hacks PCs with Malware

The Hacker News

In yet another indicator of how hacking groups are quick to capitalize on world events and improvise their attack campaigns for maximum impact, threat actors have been discovered impersonating Amnesty International to distribute malware that purports to be security software designed to safeguard against NSO Group's Pegasus surveillanceware.

Antivirus 110
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Hackers Are Now Exploiting Windows Event Logs

eSecurity Planet

Hackers have found a way to infect Windows Event Logs with fileless malware , security researchers have found. During a “very targeted” campaign, hackers used Windows Event Logs to inject shellcode payloads and operate stealthily. If it does not find one, the encrypted shell code is written in 8KB chunks in the event logs.

Malware 118
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Cactus ransomware gang claims the Schneider Electric hack

Security Affairs

The ransomware identifies user accounts by viewing successful logins in Windows Event Viewer, it also uses a modified variant of the open-source PSnmap Tool. Once the malware has escalated the privileges on a machine, the threat actors use a batch script to uninstall popular antivirus solutions installed on the machine.

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Inside Ireland’s Public Healthcare Ransomware Scare

Krebs on Security

31, 2021, the HSE’s antivirus software detected the execution of two software tools commonly used by ransomware groups — Cobalt Strike and Mimikatz — on the Patient Zero Workstation. But the antivirus software was set to monitor mode, so it did not block the malicious commands.”