Reverse engineering

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Firmware / 2 months ago

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 / 10 months ago

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 / a year ago

Malware analyst interview questions with detailed answers (Part 3)

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

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Exploit Development / a year ago

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 / a year ago

Malware analyst interview questions with detailed answers (Part 2)

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

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Malware / a year ago

Malware analyst interview questions with detailed answers (Part 1)

Here are few important questions with detailed answers for malware analyst interview. These question can be helpful for both candidates as well as interviews.

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Malware / a year ago

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 / a year ago

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 / a year ago

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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Exploit Development / 2 years ago

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,