Last updated: April 26, 2026
Ransomware operations targeting Indian SaaS, fintech, and healthcare have shifted notably in 2024-2026. The post-Conti landscape is fragmented — multiple smaller groups, RaaS (Ransomware-as-a-Service) explosions, and increasingly sector-specific targeting. This article covers the active groups hitting Indian organisations in 2026, their typical TTPs, the detection patterns that catch them, and the defensive priorities.
Active groups (anonymised aggregate, based on observed activity 2024-2026)
RansomHub
Emerged 2024 as one of the most prolific RaaS operations after the LockBit takedown. Multi-platform (Windows, Linux, ESXi). Initial access via:
- Compromised credentials (initial access brokers)
- Exposed RDP / VPN with weak passwords
- Exploitation of known CVEs (Citrix, Fortinet, ConnectWise)
Indian targets have included mid-market fintech and a major healthcare provider (multiple disclosures in 2024-2025).
Akira
Active since 2023; Linux + ESXi variants particularly impactful for Indian SaaS using virtualised infrastructure. Known for relatively short dwell times (3-7 days from initial access to encryption). TTPs include:
- VPN compromise via valid credentials
- Lateral movement via stolen RDP credentials
- ESXi targeting with custom encryption tools
Play / 8base / BlackSuit
Various RaaS groups with similar patterns. Often opportunistic — exploit whatever exposes itself (unpatched Exchange, public RDP, weak admin credentials).
Nation-state-aligned groups
For critical infrastructure and BFSI in India, nation-state-aligned activity continues — typically more sophisticated, longer dwell times (months), and more targeted than commodity ransomware. CISA, CERT-In, and sectoral CERTs (RBI, SEBI) issue advisories on specific groups.
Common attack chain
The typical 2026 ransomware kill chain hitting Indian organisations:
- Initial access — phishing email, weak VPN credentials, or unpatched edge device
- Execution — PowerShell or LOLBin-based loader; Cobalt Strike or Sliver framework
- Persistence — scheduled tasks, services, registry run keys
- Privilege escalation — Kerberoasting if domain-joined, local exploits, ADCS misconfigurations
- Discovery — BloodHound, ADRecon, network enumeration
- Lateral movement — RDP, PsExec, WMI
- Credential access — Mimikatz, NTDS.dit, LSASS dump
- Collection & exfiltration — Rclone or MEGA upload of sensitive data (double-extortion)
- Impact — encryption of file servers, ESXi datastores, backup repositories
Average dwell time before encryption: 3-14 days. Defender goal: detect at any of steps 4-8.
Defensive priorities
- MFA everywhere external-facing — especially VPN and RDP. Single highest-impact control.
- Patch SLA on edge devices — VPN gateways, firewalls, Exchange, file gateways. Days, not weeks.
- EDR with offensive-tool detection — Cobalt Strike, Sliver, Mimikatz signatures and behaviours.
- SIEM rules for the kill chain — BloodHound enumeration patterns, RDP from unusual sources, LSASS access.
- Backup hygiene — backups must be immutable, offline, tested. Ransomware operators specifically target backup systems.
- Network segmentation — file servers and ESXi management not reachable from user workstations.
- Application allow-listing — WDAC blocks ransomware binaries.
- Tabletop exercises — IR plan tested at least bi-annually.
If you’re hit
- Disconnect (don’t power off — preserve memory).
- Engage IR firm with ransomware experience and your insurer.
- Capture memory of affected hosts before reboot.
- Assess scope — what was encrypted, what exfiltrated.
- Notify regulators within statutory windows: CERT-In within 6 hours, RBI within 2-6 hours for BFSI, DPB within 72 hours for personal data.
- Restore from clean backups; do not assume the threat is contained.
- Post-incident review with documented root cause and remediation tracker.
Compliance angle
- CERT-In April 2022 direction — 6-hour notification mandatory.
- RBI / SEBI — sectoral notification within 2-6 hours.
- DPDP §8(6) — 72-hour breach notification with data-impact assessment.
- Cyber insurance — pre-incident notification often required for coverage.
The takeaway
Ransomware in 2026 is a business model, not a one-off threat. Indian organisations are routinely targeted by both opportunistic RaaS and nation-state-aligned groups. The defensive priorities haven’t changed — MFA, patch SLA, EDR, SIEM use-cases, immutable backups — but the consistency of execution has to. The teams that detect the kill chain at step 4-6 recover; the teams that detect at step 9 (encryption) face week-long outages and possible regulatory action. Pick your detection point.
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