How to Effectively Defend Against Ransomware Attacks with iOA?
iOA builds a five-dimensional defense system based on the ransomware attack chain (brute-force intrusion - antivirus disabling - virus execution - data encryption - lateral movement), covering the entire lifecycle.
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Block intrusion control | Brute-force protection: RDP two-factor authentication (dynamic Captcha) prevents login even if account credentials are compromised. Port hiding: Disable unnecessary exposed ports to reduce the attack surface. |
Prevent antivirus software damage | Kernel-level self-protection: Unauthorized termination of iOA processes is prohibited, and uninstallation requires administrator password authorization. Abnormal exit alarm: Push process force-termination events to the management end in real time. |
Block encryption behavior | Intelligent decoy: Deploy hidden decoy files in critical directories, and immediately block the process when the first file is encrypted. Behavior Analytics: Identify high-risk actions (such as deleting volume shadow copies and batch modifying file headers) and block them in real time. |
Lossless data recovery | Dual backup mechanism: shadow copy backup (real-time snapshots) + format-free backup (distributed storage), supporting restoration of encrypted or accidentally deleted files. Decryption support: Built-in 100+ ransomware decryption tools covering major families such as Phobos and WannaCry. |
Contain private network spread | Lateral movement protection: Block 12 types of lateral movement behaviors, including remote command execution and sensitive shared directory access. Domain controller hardening: Defend against domain penetration techniques such as Kerberos PTH attacks and forged tickets. |
How to View Records and Logs of Ransomware Attacks on Terminals?
You can view the relevant records and logs of ransomware attacks on terminals by clicking Real-Time Protection > Audit Log. What Are the Core Advantages of the iOA Five-Dimensional Anti-Ransomware System?
1. Anti-control device: RDP two-factor authentication blocks brute-force attacks.
2. Anti-tampering antivirus: Kernel-level self-protection against uninstallation.
3. Anti-encryption behavior: decoy interception + three major detection engines.
4. Data loss prevention: dual backup mechanism (shadow copy + format-free backup).
5. Prevent intranet propagation: interception of 12 types of remote command attacks + domain controller protection.
How Does iOA Respond to Human Intrusion Attacks (Such as RDP Brute Force)?
Provides triple protection:
1. Before brute-force: hide ports + strengthen passwords.
2. During brute-force: behavioral correlation analysis and interception.
3. After brute-force: RDP two-factor authentication (requires an identity verification code), ensuring that login remains impossible even if account credentials are compromised.
How to Quickly Mitigate Losses After a Ransomware Attack?
Follow the three-step principle:
1. Isolation: Disconnect the network to prevent lateral propagation.
2. Traceability: Check the Audit Log and abnormal processes (such as ProcessHacker). 3. Recovery: Use the iOA Document Protection backup or contact Tencent security experts for decryption.
Why Are Some Ransomware Variants Not Detected by iOA?
1. Whether ransomware or other types of Trojan viruses, they all counteract security software during propagation. Therefore, no matter which security software pursues a high detection rate, it cannot guarantee both 100% detection and zero false positives.
2. For ransomware defense, iOA has always believed that protection cannot be limited to ransomware detection. Even if 100% of ransomware can be detected, it still cannot stop the mainstream ransomware attack method -- manual intrusion to control devices, disabling security software defenses, and then deploying the ransomware.