Security News
The Cybersecurity and Infrastructure Security Agency has ordered federal agencies to scan their networks again for any signs of compromised on-premises Microsoft Exchange servers and report their findings within five days. CISA issued another directive ordering federal agencies to urgently update or disconnect their Exchange on-premises servers after Microsoft released security updates for zero-day bugs collectively dubbed ProxyLogon.
In the latest software supply chain attack, the official PHP Git repository was hacked and the code base tampered with. Yesterday, two malicious commits were pushed to the php-src Git repository maintained by the PHP team on their git.
In yet another instance of a software supply chain attack, unidentified actors hacked the official Git server of the PHP programming language and pushed unauthorized updates to insert a secret backdoor into its source code. The changes, which were committed as "Fix Typo" in an attempt to slip through undetected as a typographical correction, involved provisions for execution of arbitrary PHP code.
Microsoft has discovered web shells deployed by Black Kingdom operators on approximately 1,500 Exchange servers vulnerable to ProxyLogon attacks. More than 30 Black Kingdom submissions coming directly from impacted mail servers have been added to ransomware identification site ID Ransomware starting on March 18.
Microsoft has discovered web shells deployed by Black Kingdom operators on approximately 1,500 Exchange servers vulnerable to ProxyLogon attacks. More than 30 Black Kingdom submissions coming directly from impacted mail servers have been added to ransomware identification site ID Ransomware starting on March 18.
Two Polish government websites were hacked Wednesday and used briefly to spread false information about a non-existent radioactive threat, in what a Polish government official said had the hallmarks of a Russian cyberattack. The National Atomic Energy Agency and Health Ministry websites briefly carried claims of a supposed nuclear waste leak coming from neighboring Lithuania and threatening Poland.
It happened in July 2020, when many prominent blue-badged Twitter accounts suddenly starting sending out scammy cryptocoin messages. "Feeling greatful , doubling all payments made to my Bitcoin address," said one message, urging people to pay out $1000 now, with a $2000 payback to follow later.
Researchers have now disclosed more information on how they were able to breach multiple websites of the Indian government. Last month, researchers from the Sakura Samurai hacking group had partially disclosed that they had breached cyber systems of Indian government after finding a large number of critical vulnerabilities.
CISA officials said that, so far, there is no evidence of US federal civilian agencies compromised during ongoing attacks targeting Microsoft Exchange servers. "At this point in time, there are no federal civilian agencies that are confirmed to be compromised by this campaign," Eric Goldstein, CISA executive assistant director for cybersecurity, said in a testimony before the Homeland Security Subcommittee.
Unpatched network-attached storage devices are targeted in ongoing attacks where the attackers try to take them over and install cryptominer malware to mine for cryptocurrency. All NAS devices with QNAP firmware released before August 2020 are currently vulnerable to these attacks.