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Imagine waking up to find that an attacker has been silently harvesting browser-saved passwords, session tokens, and VPN credentials from your employees’ endpoints for the past six weeks — and you had no idea. This is not a hypothetical scenario for Indian enterprises. In 2024 and 2025, infostealer malware has emerged as one of the most consequential and least-discussed threats targeting corporate India, quietly feeding stolen credentials into underground markets that fuel ransomware, wire fraud, and advanced persistent threat (APT) campaigns.
Unlike ransomware, which announces itself loudly with encrypted files and ransom demands, infostealers are designed to be invisible. They collect, exfiltrate, and vanish — leaving organisations unaware that their credentials have been compromised until a downstream attack surfaces months later. For Indian enterprise IT leaders and CISOs, understanding this threat and building detection capability is now a business-critical requirement.
Infostealers are a category of malware designed to harvest sensitive data from infected endpoints. Their typical targets include:
Well-documented infostealer families active in 2024–2025 include Lumma Stealer, RedLine, Vidar, Rhadamanthys, and StealC. These are sold on underground forums as Malware-as-a-Service (MaaS) for a few hundred dollars per month, lowering the barrier for attackers dramatically. The operators do not need to build infrastructure — they simply buy a subscription, configure a campaign, and receive a steady stream of harvested credentials.
India’s attractiveness as a target stems from several factors. The country’s rapid digital transformation has pushed millions of enterprise employees to access corporate systems through personal browsers, shadow IT applications, and hybrid work setups — often on devices with inconsistent endpoint protection. India’s large IT and BPO sector means a single compromised employee’s browser profile may contain credentials for dozens of client organisations. And the growing use of cloud-based SaaS platforms means that a stolen session token can grant immediate access to business email, ERP systems, or cloud storage without triggering a password-based login alert.
The infection vector is typically a phishing email, a malicious advertisement (malvertising), a fake software crack or keygen, or a compromised website that exploits a browser vulnerability. Once executed, the infostealer typically runs entirely in memory or uses fileless techniques to avoid detection by traditional antivirus tools.
The credential harvesting sequence is fast — often completing within seconds of execution:
Login Data SQLite file).Some advanced infostealers, such as Rhadamanthys, include a module that specifically targets corporate VPN client configuration files and two-factor authentication (2FA) application secrets. This means that even enterprises that have deployed MFA may find their protections bypassed if the infostealer harvests the TOTP seed or a live session token.
The danger of infostealers does not end at credential theft. Stolen credential logs are sold in bulk on underground markets. Threat actors — ranging from ransomware groups to nation-state APT teams — purchase these logs and use automated tools to test credentials against enterprise portals, VPNs, Microsoft 365 tenants, and cloud management consoles.
This model — often called the Initial Access Broker (IAB) ecosystem — has become the dominant pathway for enterprise ransomware attacks globally. A ransomware operator does not need to phish your organisation directly. They simply buy access to your environment from a broker who purchased credentials from an infostealer operator. The entire chain can play out before your security team has any visibility.
For Indian enterprises, this translates to a concrete risk: a single employee’s compromised browser profile may become the entry point for a full-scale ransomware deployment or a targeted attack on financial systems, with weeks or months of dwell time before detection.
India’s Digital Personal Data Protection (DPDP) Act, 2023 imposes obligations on data fiduciaries to protect personal data and to report breaches. When an infostealer harvests employee or customer data — including email addresses, session tokens that give access to CRM databases, or HR system credentials — the resulting exposure may constitute a personal data breach under the DPDP Act.
CERT-In’s cybersecurity directions require organisations to report incidents within six hours of detection. The challenge with infostealer-driven breaches is that detection is often delayed: the actual credential theft may have occurred weeks before an attacker uses those credentials to cause visible damage. By the time the incident is flagged, your six-hour reporting clock has started — and you may be working without a full picture of what was stolen.
This gap between infection and detection is precisely why continuous monitoring capability is not optional for enterprises with DPDP compliance obligations. You cannot report what you cannot see.
Catching infostealer activity requires visibility across multiple layers simultaneously: network traffic patterns, endpoint telemetry, authentication anomalies, and log correlation. This is the problem that PrahiX Ora — a unified SecOps platform built by PrahiX Tech Pvt Ltd, which we deploy and operate for clients as their field deployment and operations partner — is designed to address.
SIEM: Correlating Infostealer IOCs Across Log Sources
PrahiX Ora’s SIEM module ingests logs from firewalls, endpoint agents, identity providers, cloud platforms, and application servers into a single correlation engine. Detection rules mapped to the MITRE ATT&CK framework — specifically the Credential Access tactic (TA0006) — flag patterns associated with infostealer behaviour: unexpected DPAPI access, bulk credential reads from browser profiles, and exfiltration attempts over HTTPS to unknown endpoints. When an alert fires, the SIEM’s graph-based attack storyline reconstruction traces the full chain of events, linking the initial execution to the exfiltration event and any lateral movement that follows. Crucially for Indian enterprises, the platform supports CERT-In’s direction for 180-day in-country log retention, with tiered hot/cold/archive storage ensuring that evidence remains available for investigation and regulatory reporting.
NMS: Detecting Exfiltration in Network Traffic
Infostealers exfiltrate over HTTPS, which traditional firewalls let pass. Ora’s Network Management System (NMS) provides unified observability across FortiGate firewalls, switches, access points, and WAN links, applying ML-based anomaly detection to flag unusual outbound data volumes or connections to newly registered domains — common characteristics of infostealer C2 infrastructure. For enterprises with multi-vendor network estates where NOC visibility has historically been fragmented across multiple dashboards, Ora’s unified topology view — built on LLDP/CDP discovery — means that an anomaly on a remote branch firewall is as visible as one at the core data centre.
Video Surveillance (VMS): Physical and Logical Under One View
For manufacturing, retail, and multi-site enterprises, infostealer incidents may coincide with or be preceded by physical security events — an unauthorised visitor using a workstation, or a removable media insertion. Ora’s video surveillance (VMS) module integrates ONVIF, Hikvision, and Dahua camera management with video analytics, bringing physical security events into the same operations view as network and endpoint alerts. This single-pane-of-glass approach helps security teams correlate physical access anomalies with digital threat indicators during incident investigation.
SOAR: Automating Response Within CERT-In’s Six-Hour Window
When an infostealer alert is confirmed, speed matters. Ora’s SOAR module provides playbook automation with pre-built connectors and automated response actions — including pushing credential revocation triggers and blocklists directly to FortiGate firewalls. For the enterprise accounts and finance teams most at risk from credential-driven fraud, automated account suspension and VPN session termination can be triggered within minutes of a confirmed alert. This automation is what makes CERT-In’s six-hour incident reporting timeline realistic rather than aspirational. Manual investigation and manual response steps simply cannot compress into that window without automation support.
To explore platform capabilities, visit ora.prahix.com.
Detection must be paired with prevention. Several FortiGate and FortiMail controls directly reduce infostealer exposure:
If your SOC detects indicators of infostealer activity, the following immediate actions should be executed:
Sustainable defence against infostealers requires a combination of technical controls, process discipline, and continuous monitoring:
PJ Networks provides managed security services to Indian enterprises across sectors, combining FortiGate-based perimeter hardening, FortiMail email security, and 24/7 NOC/SOC operations with the PrahiX Ora unified SecOps platform. Our SOC analysts are specifically trained to identify infostealer IOCs in log streams, correlate credential-access anomalies with network exfiltration events, and respond within the timelines that CERT-In compliance demands.
If your organisation has not yet assessed its exposure to credential-harvesting malware — or if you are looking to close the gap between infection and detection — we welcome a conversation. Contact the PJ Networks team to understand how managed detection and response, combined with FortiGate’s threat intelligence integration, can build the infostealer resilience your enterprise needs.
PJ Networks | Managed Security • 24/7 NOC/SOC • FortiGate | pjnetworks.com