## The Commoditization of Access A leaked employee password rarely goes straight from a phishing email to a catastrophic network breach. Instead, modern cybercrime relies on a highly structured, multi-tier supply chain. Understanding this lifecycle is critical for intervening before a leaked credential turns into a ransomware deployment. ## Step 1: The Initial Compromise Most credentials today are harvested en masse via "Infostealers" (like RedLine, Vidar, or Raccoon). These are cheap malware variants distributed via phishing, malicious ads, or cracked software. Once installed on a victim's machine, the infostealer silently scrapes saved passwords, cookies, and session tokens from the web browser and sends them back to a Command and Control (C2) server. ## Step 2: The Log Aggregator The threat actor operating the infostealer rarely uses the credentials themselves. Instead, they compile thousands of infected machine records into massive text files known as "logs." These log files contain a treasure trove of data but are disorganized and noisy. ## Step 3: The Marketplace and Initial Access Brokers These logs are then sold in bulk on automated Dark Web marketplaces (such as Russian Market or Genesis Market, though the landscape constantly shifts). Here, specialized actors known as Initial Access Brokers (IABs) step in. IABs purchase bulk logs and sift through them looking for high-value targets: corporate VPNs, RDP endpoints, or single sign-on (SSO) portals. They will manually verify the credentials, ensure they still work, and bypass basic multi-factor authentication if possible. ## Step 4: The Sale to Ransomware Affiliates Once verified, the IAB packages this "Initial Access" and auctions it on exclusive Dark Web forums. The buyers are typically ransomware affiliates or state-sponsored espionage groups who want to skip the difficult phase of breaking into a network. ## The Intervention Window This multi-step process is the defender's advantage. From the moment an infostealer scrapes a password to the moment a ransomware affiliate buys the access, days or weeks may pass. By continuously monitoring Dark Web marketplaces and log aggregators, Aarvi identifies these credentials while they are still in transit, allowing security teams to invalidate the sessions and rotate passwords before the real attack begins.
