Cybersecurity scientists have uncovered a set of 11 dwelling-off-the-land binaries-and-scripts (LOLBAS) that could be maliciously abused by danger actors to carry out put up-exploitation activities.
“LOLBAS is an attack technique that utilizes binaries and scripts that are now section of the method for destructive reasons,” Pentera security researcher Nir Chako claimed. “This would make it challenging for security groups to distinguish concerning reputable and malicious routines, considering that they are all carried out by reliable technique utilities.”
To that end, the Israeli cybersecurity organization mentioned it uncovered 9 LOLBAS downloaders and three executors that could empower adversaries to down load and execute “additional robust malware” on infected hosts.
This features: MsoHtmEd.exe, Mspub.exe, ProtocolHandler.exe, ConfigSecurityPolicy.exe, InstallUtil.exe, Mshta.exe, Presentationhost.exe, Outlook.exe, MSAccess.exe, scp.exe, and sftp.exe.
“In a entire attack chain, a hacker will use a LOLBAS downloader to down load extra sturdy malware,” Chako claimed. “Then, they will try to execute it in a stealthy way. LOLBAS executors make it possible for attackers to execute their destructive applications as aspect of a genuine wanting method tree on the method.”
That explained, Pentera famous that attackers could also use other executables from software outdoors of all those linked to Microsoft to reach comparable aims.
The findings come as Vectra disclosed a probable new attack vector that leverages Microsoft Entra ID (formerly Azure Active Directory) cross-tenant synchronization (CTS) aspect to facilitate lateral motion to other tenants assuming a privileged identification has currently been compromised in the cloud natural environment.
“An attacker working in a compromised natural environment can exploit an present CTS configuration tenant to go laterally from one tenant to a further related tenant,” the company stated. Alternatively, “an attacker operating in a compromised tenant can deploy a rogue Cross Tenant Accessibility configuration to preserve persistent entry.”
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