Reverse engineering

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Exploit Development 20 October 2020

Impact of x64 calling convention in format string exploitation

In this post I will try to give you a brief on how format string exploitation can differ in 64 bit architecture due to different calling convention in 64 bit.

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Malware 26 December 2019

Malware analysis interview questions with detailed answers (Part 4)

In this part we will discuss advance as well as miscellaneous questions for malware analysis interview. Even if you are already an experienced researcher, still these questions can be helpful for learning some new stuff.

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Firmware 19 July 2019

Getting processor information using cpuid instruction and inline assembly

cpuid is a processor specific instruction used to get processor's information and features. In this post we are going to learn how to extract those information using inline assembly in c.

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Reverse engineering 22 November 2018

What's at 1st sector/MBR of hard disk(MBR Forensics)

MBR have lots of details about the hard disk or other storage disk which can be used for forensics purposes. In this article we will analyze the MBR's 512 bytes of data and try to interpret it.

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Malware 18 September 2018

Malware analysis interview questions with detailed answers (Part 3)

Here are few more important questions with detailed answers for malware analysis interview. Topic covers in this part is Dynamic analysis, static analysis and debugging.

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Featured

Exploit Development 7 September 2018

Exploiting buffer overflow in Windows application through TextBox using only Alphanumeric payload

Lets look at how to exploit seh based buffer overflow in WIndows GUI application that have input restrictions of supporting only ascii characters as input.

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Malware 6 August 2018

Malware analysis interview questions with detailed answers (Part 2)

Here are few more important questions with detailed answers for malware analysis interview. Topic covers in this part is OS concepts, Programming, Assembly language and Dynamic analysis.

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Malware 3 August 2018

Malware analysis interview questions with detailed answers (Part 1)

Here is a series of important questions with detailed answers for malware analysis interviews. These question can be helpful for both candidates and interviewers.

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Featured

Malware 5 July 2018

Deep dive into Tofsee spambot(Win32:Tofsee-J) malware dropper-2

In this part we will do the static analysis of dropper of tofsee .Tofsee is a spambot categorie of malware used to send spam messages, click fraud to different smtp mail server.

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Malware 3 July 2018

Deep dive into Tofsee spambot(Win32:Tofsee-J) malware dropper-1

Tofsee is a spambot categorie of malware used to send spam messages, click fraud to different smtp mail server. In this part we will do the dynamic analysis of dropper of tofsee.

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Rootkits 13 June 2018

Understanding Windows DKOM(Direct Kernel Object Manipulation) techniques(Part 1-EPROCESS)

Windows uses different Objects structures for different purposes like io-management, process management etc. These structures are vulnerable to different attacks which we will going to discuss in this series.

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Featured

Exploit Development 29 January 2018

Exploiting Off-by-One buffer overflow vulnerability

Off-by-one vulnerability is little difficult to find and hence can be present in big softwares.It can cause due to not aware of fact if your string provided is not null terminating then strcpy will add a null terminator at the end of string,