Platform
Security & Compliance Automation Platform
UnderDefense MAXI is the solution to day-to-day cybersecurity problems of IT leaders and teams. It builds your 24/7 business protection together with you on the driver’s seat.
UnderDefense MAXI Platform
UnderDefense Secures Top Honor at the 2025 Global Infosec Awards
We’re proud of being a winner at the 2025 Global Infosec Awards…
Our AI
10-Point AWS Security Checklist for Executives
Quickly assess your cloud security posture with this executive-ready checklist covering IAM, monitoring, and compliance essentials.
Anti-Phishing Playbook
Your free PDF guide to spotting and stopping phishing attacks before they reach your team or data.
Services
24/7 Threat Detection & MAXImum Responsiveness
Our human-led MDR service combines expert insight and automation and AI for fast, precise threat response. Get full context in 2 minutes and cut MTTC to 15, staying ahead of ransomware and other attacks.
Calculate your MDR price
Pay only for the services you actually need, with no hidden costs.
Solutions
10-Point AWS Security Checklist for Executives
Quickly assess your cloud security posture with this executive-ready checklist covering IAM, monitoring, and compliance essentials.
Anti-Phishing Playbook
Your free PDF guide to spotting and stopping phishing attacks before they reach your team or data.
Company
Spot threats faster and respond smarter than tools alone
24/7 MDR and SOC services led by award-winning security experts. We act as an extension to your team or as a fully remote team, providing detailed threat insights and actionable responses to secure your environment immediately.
UnderDefense is an AWS Partner
We’re excited to announce that UnderDefense is now an AWS partner and available on AWS Marketplace…
Resources
Managed SOC at Your Service
Augment your SOC with 24/7 monitoring, threat detection, and expert response—without the overhead. Integrated with your existing tools, our SOCaaS stops attacks before they cause harm.
Managed SIEM Pricing Guide
Download a clear, practical overview of Managed SIEM pricing, featuring detailed breakdowns by service type, pricing model, real-world pros and cons, and key cost factors.
Partners
Managed SOC at Your Service
Augment your SOC with 24/7 monitoring, threat detection, and expert response—without the overhead. Integrated with your existing tools, our SOCaaS stops attacks before they cause harm.
Managed SIEM Pricing Guide
Download a clear, practical overview of Managed SIEM pricing, featuring detailed breakdowns by service type, pricing model, real-world pros and cons, and key cost factors.
Ailock ransomware recovery team on standby
Ailock is an emerging ransomware group active in 2024–2025, deploying a fast file-locking payload against Windows environments while operating a dark-web leak site to pressure victims with double extortion. Isolate affected systems immediately and contact UnderDefense's incident response team — do not attempt decryption or negotiation alone.
Average Mttc
Ransom-Free recovery rate
Avoided in ransom
Global availability
Systems restored
IR experts
Ransomware cases resolved
IR experience
Do NOT attempt any self-remediation, as it can trigger further encryption and destroy recovery points. Instead, follow these steps:
Contact us now for urgent ransomware response assistance, 24/7
Get Help Now
Accomplishments and recognitions, demonstrating our commitment to excellence and innovation.
Momentum Leader in MDR
Best Support in MDR & IR
Managed Detection and Response (MDR)
Top Cybersecurity Company 2025
Best Managed Detection and Response Service
#4 of 184 teams Splunk Boss of the SOC
Best Of Cybersecurity Awards for Q1 2025
AWS Partner
Splunk Manage Premier Partner
Like a crime scene, a ransomware attack must be preserved — tampering with encrypted files, attempting self-recovery, or engaging with attackers can destroy critical evidence and reduce your chances of recovery.
Taking the right steps in the first moments after a Ailock attack can make a huge difference and help you make a full recovery. Request 24/7 Ailock ransomware recovery services to decrypt your data and maximize your chances of restoring operations.
Ailock infections manifest with .ailock file extension and ransom notes named README_AILOCK.txt. Initial compromise traces to phishing and credential theft. The malware exhibits standard ransomware behavior: AES-256-CBC encryption with data exfiltration.
AES-256-CBC with RSA-2048 key wrapping. Standard contemporary approach.
Early-stage RaaS with affiliate recruitment. Operators maintain infrastructure; affiliates source targets. Professional presentation suggests experience but limited operational scale.
Dual extortion: file encryption plus data publication threats. Leak site publishes victim names and sample data. Standard countdown timers and contact instructions.
Windows-primary. No multi-platform variants documented.
README_AILOCK.txt with Tor contact URL, Bitcoin wallet, victim ID, and payment deadline.
No decryption tool available.
File Extensions
.ailock
Ransom Note Filenames
README_AILOCK.txt, AILOCK_RESTORE.txt
Ailock Hashes
Process names: ailock.exe, payment.exe. Spawning from system services observed.
Ailock Tools
– EDR Disabling: Windows Defender GPO modification
– Credential Dumping: Mimikatz, registry extraction
– Reconnaissance: Network enumeration
– Exfiltration: Rclone, Mega.nz
– Lateral Movement: Pass-the-Hash, SMB
– Malware: Standard delivery trojans, backdoors
Most Common Red Flag
PowerShell script execution, Rclone cloud sync activity, unusual service account behavior.
Attack vector | % of Ailock incidents | Notes |
Phishing with Trojan | 55% | Credential stealer delivery |
RDP Brute Force | 30% | Weak credentials |
Internet-Facing App | 15% | Unpatched vulnerabilities |
8–12 documented victims. Ransom demands: $25K–$500K. Payment rate: 30–40%. Most victims recovered via backups.
Eliminate attacker access: revoke credentials, remove persistence, scan for backdoors, restore from clean backups.
Recovery depends on backup availability. Organizations with backups recover in 1–5 days. Post-recovery: enhanced monitoring and EDR deployment.
Documented demands: $25,000–$500,000. Average settlement: $75,000–$200,000 after negotiation.
10 reasons why you should choose the UnderDefense ransomware recovery consulting services:
Get Help Now
Ailock is an emerging RaaS ransomware operation (2024–2025) using AES-256-CBC encryption with RSA-2048 wrapping. Limited documentation exists; however, the group operates a public leak site and recruits affiliates. Early operational stage suggests growing ambitions.
The group recruits affiliates through dark web forums with entry fees and commission-based payouts. Standard RaaS model documentation.
Documented victims span finance, manufacturing, and healthcare sectors. No apparent specialization; targeting appears opportunistic based on affiliate capabilities.
No public decryption tool exists.
Data publication on leak site within 7–10 days. Follow-through rate currently unknown (limited victim base).
1) Email security with malware sandboxing; 2) Patch internet-facing applications; 3) MFA on all access; 4) EDR deployment; 5) Offline backups; 6) Regular security assessments.
1) Isolate systems; 2) Revoke credentials; 3) Scan for persistence and backdoors; 4) Preserve forensic evidence; 5) Notify law enforcement; 6) Verify backup integrity; 7) Begin recovery if legitimate breach confirmed; 8) Monitor for re-compromise; 9) Post-incident, audit access logs and implement enhanced monitoring.
Limited victim documentation, small operational footprint, and recent launch suggest early-stage RaaS. The group may grow significantly or collapse based on affiliate success and operational execution.
Ailock operates as pure RaaS affiliate-driven model without ideological or strategic victim selection. Standard techniques and ransomware approach; the group lacks distinguishing operational characteristics seen in mature threat actors.
