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Cybersecurity guy who loves to playaround hardware and hexadecimals. I have experince in IoT Security Research.

My InfoSec activities and certifications 💻

I do security talks and hands on workshops for teaching penetration testing at numerous places. Active in null community for past 3 years [null is India's largest open security community.] My profile

💀 HackTheBox Profile 💀
Hack The Box

Talks: 🎤

My Certs: 🏆

  • Offensive Security Certified Professional: verify
  • Judge - Global OSINT Search Party CTF: verify
  • OSINT in the 6ix Course: verify

Work Experince

SecureLayer7: It is pune based cybersecurity startup which provides various penetration testing service to international clients around the globe. Founded by Mr. Sandeep Kamble

  • During my time there I handled IoT Security projects and carried out penetration testing
  • Tested various hardware based attacks and debug ports such URAT, SPI, I2C and CAN-BUS
  • Performed RF based attacks such as signal jamming and replay with Software Defined Radio (SDR) by working on USRP B210 and GNU Radio Companion
  • Did firmware security assessment and reverse engineering. Extracted firmware over flash memory chips with SOIC-8, used Binwalk and frameworks like FACT for firmware filesystem analysis.
  • I have good understanding of ARM assembly 32-bit and knows how to write basic exploits and shellcode.
  • Wrote vulnerability reports and communicated with clients for IoT security risk mitigations.

Programming languages and frameworks that I 💓

Media Presence 📰

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Popular repositories

  1. Simple mind maps for IoT security attack surfaces and methodologies

    13 3

  2. An example kernel module rootkit to get reverse shell

    C 6 3

  3. A simple jamming attack with GNU randio and gaussian noise source

    Python 5 1

  4. Contains python script to build armv7 based debian container environment for static binary analysis

    Python 3 1

22 contributions in the last year

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Contribution activity

October 2021

CJHackerz has no activity yet for this period.

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