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  1. Depov

    EDR bypass macOS: XPC + NIB injection chain to disable CrowdStrike and Kandji

    At the red team operation against the macOS fleet of one fintech company in early 2026, we received an initial access through credential phishing - and stumbled in a minute to CrowdStrike Falcon. He shot every reverse-shell payload before the first callback. Recompilation, ellcode encryption...
  2. Depov

    IEC 62443 and NIST SP 800-82: OT in practice — security program and maturity assessment

    At a gap analysis of a chemical enterprise last year, we found the SIS (Safety Instrumented System) Triconex controller, connected to the corporate network via an unmanageable switch. Without a firewall, without a VLAN, without traffic recording in SIEM. In the asset, this connection did not...
  3. Depov

    Protection from ransomware for small businesses: from attack vector to detection rule

    The company is 80 hosts. Bakapi via Veeam every night, storage policy - 14 days. Monday, morning - accounting can not open the database of 1C, file extensions on the file server have changed. After 40 minutes, the picture is clear: the ransomware walked through the file server, two domain...
  4. Depov

    CTF and machine learning: analysis of attacks on ML models in competitions

    On PHDays 9, the organizers launched an AI CTF of six tasks - out of 130 registered at least one flag, only 14 people handed over. Fourteen. One of the tasks, the Prediction Challenge, offered to download the model in pickle format to the Kaggle-analytah server and gain 1.0 accuracy on randomly...
  5. Depov

    Rowhammer attack DRAM: evolution from the original to Blacksmith and bypass TRR

    About 139 000 activations of the string-aggressor for a 64-millisecond refresh interval. It is necessary so much that the charge leakage in the next cell breaks the threshold voltage and turns the bit. Figure from the work of Kim et al. (Carnegie Mellon + Intel, ISCA 2014) - for the most...
  6. Depov

    Vulnerabilities of password managers: DOM-based Extension Clickjacking – analysis and detection for SOC

    11 of the 11 password managers tested – 1Password, Bitwarden, LastPass, Dashlabe, iCloud Passwords and six more – were vulnerable to DOM-based Extension Clickjacking in the default configuration. That's it. No exceptions. Marek Tot showed this at DEF CON 33 in August 2025. One click of the user...
  7. Depov

    Threat Intelligence for SOC in practice: collection, processing and application of TI in a small team

    According to CrowdStrike Global Threat Report 2025, the average time of the email movement after initial access is 62 minutes. The record is 51 seconds. In a team of five analysts where I built a TI process, the processing cycle of the new IOC from the appearance in the feed to the triggering of...
  8. Depov

    Password storage architecture: how encryption is arranged in 1Password, Bitwarden, KeePass and browser managers

    In 2022, LastPass servers compromised, and the attackers took out the encrypted store of users - in total. Passwords inside were encrypted on the client side, but the URL of the sites, records names and metadata lay in the open form. In the following months, the crypto community recorded theft...
  9. Depov

    MinerSearch: Miner detection in Windows - from manual analysis to automatic removal

    Business logic of hidden mining: why is it an intruder The hidden miner is one of the “quiet” threats. Unlike a ransomware that claims to itself, the cryptominer generates a stable passive income for months. The scheme is simple: infect the maximum of cars, to mine Monero (XMR) through pools...
  10. Depov

    Responding to incidents in industrial networks: PLC, TTPs attackers and stop recovery

    How the response to incidents of ICS SCADA differs from IT Responding to incidents in industrial networks is based on another model of priorities. In the IT classic - CIA (Confidentiality, Integrity, Availability). In OT - Safety, Availability, Integrity, and only then Confidentiality. It does...
  11. Depov

    Penttest of browser extensions: a methodology for analysis, vulnerability and detection for SOC

    Business logic: why are the expansions attacked and what does it threaten the company A browser extension is a JavaScript code with preferred access to DOM visited sites, cookies, storage and browser API. For the attacker, this is a ready-made bridgehead: you do not need to bypass EDR or exploit...
  12. Depov

    Protection against DDoS attacks: awax, scrupbing-center, rate limiting and automation of response

    DDoS-attack business logic: TTPs on MITRE AT&CK and what SOC should see Before building a DDoS-resistant infrastructure, let’s see how the attack looks through the TTPs prism – without that, the correlation rules and the detection will be curved. The preparatory phase. The attacker assembles IP...
  13. Depov

    CSRF attack: operation mechanics, defense and PoC construction

    On the fintech pedest, the developers swore that the CSRF attack is impossible - "we have a set-off of CORS." After 40 minutes, a working PoC was ready: the POST-form automatically sent changed email linking the account. CORS had nothing to do with this query - the browser honestly sent the...
  14. Depov

    Detection of mobile spyware in the corporate environment: from blind MDM zones to network-based detection

    On the audit of the mobile arsenal of fintech companies from the top 30, we found the iPhone of the CFO, who for three weeks leaked the microphone records on the C2-server via HTTPS. At the same time, Intune cheerfully reported "compliant": encryption is actively installed, PIN is installed, iOS...
  15. Depov

    WAPT: web application pentest as a methodology and practice

    What is WAPT / WAPT Web Application Penetration Testing (WATT or WAPT) is a systemic method of analyzing the security of web applications that simulates the actions of a real attacker. Unlike simply crawling vulnerabilities, where the program automatically checks the code and configurations...
  16. Depov

    macOS Red Team Tools: Mythic, Sliver, Poseidon and custom implants for offensive operations

    Kill chain macOS operations: where C2 stands Corporate Mac is Keychain with OAuth tokens, VPN configurations, active Slack and Teams sessions, SSH keys without a pass-free. According to CrowdStrike Global Threat Report 2025, 79% of attacks are delayed without malware (living off the land), and...
  17. Depov

    Corporate Wi-Fi Network Security: WIDS/WIPS, hardening 802.1X and detection rogue AP

    Threat model: how an attacker breaks the protection of the wireless network of the enterprise A wireless network is the only segment of corporate infrastructure where an attacker does not need physical access to the switch port. Enough parking, floors above or cafe through the wall. According to...
  18. Depov

    WebSocket Security: testing real-time applications

    яIntroduction: WebSocket in a modern web WebSocket is a communication protocol that provides a two-way data transmission channel over a single TCP connection. WS Protocol: handshake, frames, opcodes The Client sends an HTTP request (GET method) and, if successful, the server returns an HTTP...
  19. Depov

    UEBA to detect insiders: setting up behavioral analytics and integration with SIEM

    Why DLP System Without Behavioral Analytics Is Blind to Slices DLP sees content and transmission channel. It works when a document with a “confidential” stamp goes to personal mail or is copied to USB. But the insider, who worked in the company for three years, knows which files are marked with...
  20. Depov

    Attacks on endpoint management of the system: analysis of TTP 2026 and detection for SOC

    On February 13, 2026, CISA gave the organizations three days to eliminate CVE-2026-1731 - pre-authentiction RCE in BeyondTrust Remote Support with CVSS 9.9. Three days. The operation was in active ransomware campaigns even before most teams managed to download the patch, not to mention testing...
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