Get the Entry Point of Executable in Windows

PEiD

http://www.softpedia.com/get/Programming/Packers-Crypters-Protectors/PEiD-updated.shtml

find out BIOS info from Linux command

$ sudo dmidecode | less

Chomebook 101

http://dev.chromium.org/chromium-os/developer-information-for-chrome-os-devices

Release date	Manufacturer	Model	Project code name
December 2010	Google	Cr-48	Mario
June 2011	Samsung	Series 5 Chromebook	Alex
July 2011	Acer	AC700 Chromebook	ZGB
May 2012	Samsung	Series 3 Chromebox	Stumpy
May 2012	Samsung	Series 5 550 Chromebook	Lumpy

wiki:http://en.wikipedia.org/wiki/Chromebook

Samsung Series 5 550 Chromebook does not support IOMMU. It uses 1.3 GHz Intel Celeron 867 Processor. Please see following link from wiki:

http://en.wikipedia.org/wiki/Intel_Celeron_867#Sandy_Bridge_based_Celerons_2
http://ark.intel.com/products/63918

Install Ubuntu on Chromebook

Install Ubuntu on Samsung series 5:
http://www.devchronicles.com/2011/10/installing-ubuntu-on-samsung-series-5.html

I followed the instructions on my Samsung series 5 550, it works as well.

Another new instruction for installing:
http://chromeos-cr48.blogspot.com/2012/04/chrubuntu-1204-now-with-double-bits.html?

unlock SMRAM of AMD Processor

1. Unlocking 0 bit of HWCR register (MSR 0xC001_0015) in BIOS

2. Checking the SMM_BASE, and disable ASeg bit (0 bit)

SMM_BASE (MSR 0xC0010111h): check smm base if it is 0xa0000

SMM_MASK (MSR 0xC001_0113h): disable ASeg for unlocking SMRAM

3. Set MtrrFixDramModEn (bit 19) in SYSCFG register (MSR 0xC001_0010h)

It enables modification of RdDram and WrDram bits in fixed MTRRs 

4. Set the RdMem (bit 4) and WrMem (bit 3) bits of Memory Range Type Reigster MTRRfix16K_A0000 (MSR: 0x259)

msr.lo=0x18181818

msr.hi=0x18181818

5. Set the  MtrrFixDramEn (bit 18) in SYSCFG register (MSR 0xC001_0010h)

It enables read and write to RAM physical memory instead I/O mapped memory

6. Copy the binary code to 0xa0000

7. Enable the Aseg bit (0 bit) in SMM_MASK register (MSR 0xC001_0113h)

Reference: 

BKDG of AMD K8

step 4 needs to ee the “Memory Type Range Registers” section in Volume 2 of the AMD64 Architecture Programmer’s Manual for more information.

http://support.amd.com/us/Processor_TechDocs/24593_APM_v2.pdf


Ignore the above steps, use the updated version: 

First, you need an unlocked SMRAM, which means 0 bit of HWCR register is not set (MSR 0xC001_0015h)

1. Enable bit 19 and bit 18 of SYSCFG register (MSR 0xC001_0010h)
In my machine, the original value is 0x160601, and I set it to 0x1e0601

2. Set bit 4 and bit 3 of MTRR memory type range register (MSR: 0x259)
msr.lo=0x18181818
msr.hi=0x18181818
In my machine, the original value is 0, and I set it to 0x1818181818181818

3. clear bit 0 of SMM_MASK register (MSR: 0xC001_0113h)
In my machine, the original value is 1, and I set it to 0.

Latex draw diagram

Use tikz

http://tex.stackexchange.com/questions/8879/draw-image-data-flow

Heap Overflow Examples

Advanced Exploitation of Internet Explorer Heap Overflow (Pwn2Own 2012 Exploit)


http://www.vupen.com/blog/20120710.Advanced_Exploitation_of_Internet_Explorer_HeapOv_CVE-2012-1876.php


Huawei router Defcon Heap overflow exploit


http://phenoelit.org/stuff/Huawei_DEFCON_XX.pdf

Benchmark

Benchmark 1

Windows: PCMark
Download: http://www.pcmark.com/

Linux: UnixBench
Download: http://code.google.com/p/byte-unixbench/downloads/detail?name=unixbench-5.1.2.tar.gz&can=2&q=

Usage: ./Run


Benchmark 2

SuperPI

systester
http://systester.sourceforge.net/downloads.php