Refer to NIST guidelines when creating password policies. Where possible, also enable multi-factor authentication on externally facing services. Use conditional access policies to block logins from non-compliant devices or from outside defined organization IP ranges. Too strict a policy may create a denial of service condition and render environments un-usable, with all accounts used in the brute force being locked-out. Set account lockout policies after a certain number of failed login attempts to prevent passwords from being guessed. Turla may attempt to connect to systems within a victim's network using net use commands and a predefined list or collection of passwords. QakBot can conduct brute force attacks to capture credentials. Pysa has used brute force attempts against a central management console, as well as some Active Directory accounts. PoshC2 has modules for brute forcing local administrator and AD user accounts. ĭuring Operation Dream Job, Lazarus Group performed brute force attacks against administrator accounts. OilRig has used brute force techniques to obtain credentials. Kinsing has attempted to brute force hosts over SSH. HEXANE has used brute force attacks to compromise valid credentials. įox Kitten has brute forced RDP credentials. įIN5 has has used the tool GET2 Penetrator to look for remote login and hard-coded credentials.
ĭragonfly has attempted to brute force credentials to gain access. ĭarkVishnya used brute-force attack to obtain login data. ĬrackMapExec can brute force supplied user credentials across a network range. Ĭhaos conducts brute force attacks against SSH services to gain initial access. Ĭaterpillar WebShell has a module to perform brute force attacks on a system. ĪPT39 has used Ncrack to reveal credentials. ĪPT38 has used brute force techniques to attempt account access when passwords are unknown or when password hashes are unavailable. ĪPT28 can perform brute force attacks to obtain credentials. During the 2016 Ukraine Electric Power Attack, Sandworm Team used a script to attempt RPC authentication against a number of hosts.
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