playing with pointers and numbers ex @crowdstrike @payatulabs @IITIOfficial CTFs with @BanditsByte

Joined April 2014
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Added PoC for CVE-2018-8389 to github.com/tunz/js-vuln-db/b… Also attached the presentation I used at @bsidesdelhi to present the same bug with internals of JScript's GC. gist.github.com/sudhackar/20… Feedback Welcome! cc @HackSysTeam

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For #flareon12 my intial notes are here for 9, 8, 7 and 5 sudhackar.notion.site/Flare-… Currently traveling, but plan to do a full writeup with all thr deobfuscation scripts later in November Thanks @Mandiant and the orgs @nickharbour @m_r_tz et al. for the great challenges
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Finished #flareon12 this weekend 7 and 9 were probably my favorite ones this year
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the prize for #flareon11 has landed in the mail this weekend
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Sudhakar Verma retweeted
24 Dec 2024
Cybersecurity professionals 📢 Join @_sudhackar at #NullconGoa2025 to ace at everything reverse engineering 🦠 Analyze malware 🔧 Build vulnerability research tools 🤖 Automate analysis processes Training Objective: nullcon.net/goa-2025/trainin… #reverseengineering #malwareanalysis
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Went through @saidelike dbg3011 and arch2021 previews on @OpenSecTraining beta this last week. Very good content. Like the simple VM setup script in dbg3011.
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Sudhakar Verma retweeted
Stood #1 this year in CSAW India @CSAW_IITK Grats to other teams @InfoSecIITR and @teambi0s #CSAW #CSAW20
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Sudhakar Verma retweeted
Have you ever looked at programs and wondered how do they function? How to analyze and debug the operating system and malware? Get to know it from @_sudhackar in his training at @nullcon November Online Training | 7 - 10 Nov. 2020 nullcon.net/website/online-t…
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Sudhakar Verma retweeted
3 Aug 2020
I did a follow-up post on @ShiftLeftInc Joern. In this post I talk about solving the @GHSecurityLab CodeQL U-Boot challenge with Joern. jaiverma.github.io/blog/joer…

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Played @teambi0s @InCTF this weekend. Here are the writeups for 4 reverse challnges - ArchRide, jazz, RE warmup and P1Ayground sudhackar.github.io/blog/INC…
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wtf is ruler, it's scale.
22 Jul 2020
Wtf is biscuit, it's biscoot. (Continue this)
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Sudhakar Verma retweeted
1 Jul 2020
I did a small introductory write-up about using @ShiftLeftInc Joern for code analysis. jaiverma.github.io/blog/joer…

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Finally got some time to try @MiasmRe to solve a crackme. I wrote a blog on how to use its Dynamic Symbolic Execution engine to automatically find and solve constraints since there are not many blogs on it sudhackar.github.io/blog/lea…
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Sudhakar Verma retweeted
Another CTF writeup using Qiling. ByteBandits CTF 2020 (Autobot) by @chinmay_dd chinmaydd.in/2020/04/13/Auto…

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Yay! First memory corruption in WebKit for me CVE-2020-10018 webkitgtk.org/security/WSA-2… with cloudfuzz, @HackSysTeam and @payatulabs

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Had fun running it this year too. Thanks to other admins @yamantasbagv2 @0xpwnisher @nbsriharsha @_r00t3r_ @lionaneesh and @_jaiverma I hope everyone had fun. Please rate us on CTFTime ctftime.org/event/962/weight…

9 Feb 2020
Phew! #HackIMCTF just got over. Here's a summary Total registrations: 2279 Active teams with atleast 1 point : 1209 Scoreboard will be up in a while on CTFtime Sources for #HackIMCTF at github.com/nullcon/hackim-20… Time to sleep?
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The CTF runs for 18 more hours. Go get them all!! #HackIMCTF
8 Feb 2020
Replying to @nullcon
Attention: All challenges have been opened now. There a quite a few still with 0 solves. Go get the flags #HackIMCTF
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Sudhakar Verma retweeted
7 Feb 2020
Replying to @_jaiverma
We have just a flag from the 600th team! Woohoo! In just under 3 hours. The CTF website has seen ~300k requests. #HackIMCTF
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Sudhakar Verma retweeted
24 Jan 2020
#HackIMCTF is around the corner! We want you to be ready for it. On 30th Jan, Sudhakar Verma (@_sudhackar) will take you through Do’s & Don’ts of #CTF. Register for the #webinar: bit.ly/37jroAu #HackIM #Nullcon #Nullcon2020 #CaptureTheFlag #Security #InfoSec
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Same as last year but with more interesting and fun challs from @_jaiverma @_r00t3r_ @nbsriharsha @0xpwnisher and @yamantasbagv2
18 Jan 2020
We are back with a popular #CaptureTheFlag (CTF) contest. Be ready to participate in the #HackIM CTF #contest. The #CTF will run for 36 hours, from 7th Feb 2020 2230 IST to 9th Feb 1030 IST. Team registration is now open to all: ctf.nullcon.net/register #Nullcon2020 #Nullcon
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