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2.Monitoring on Windows Windows offers no native monitoring tool of the system's activity that is really efficient. A company called Sysinternals has conceived free, light and efficient monitoring tools. We have chosen to present several of them. FileMon FileMon is a utility enabling to monitor in real time the process' access to files on the disk. The name of the process, the type of request, the name of the concerned file and maybe the localization of data in the file are the informations sent back by FileMon. RegMon RegMon is a very useful tool, that enables you to monitor in real time the activity of the register base, by displaying, like FileMon, which process has access to which key in the base, and all this while specifying the type of request. The Hackademy DMP -184/209- SYSDREAM
Pmon NT Pmon is a process monitoring tool: it sends back information on active execution threads on the system. 3.Anti port scan The methodology presented here is valid only for Linux. We are going to use software called portsentry to detect and block the source of a port scan. You can download it from: www.psionic.com/abacus/portsentry To install it: tar –zxvf portsentry-x.tar.gz cd portsentry-x make linux make install When a scan is detected, portsentry can act following two methods: – By re-routing the packets coming from the source towards /dev/null. – By applying an iptables chain, so as to block the source. The configuration file is in the /usr/local/psionic/portsentry/ directory. Edit it to modify the base configuration: The Hackademy DMP -185/209- SYSDREAM
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Hack security “pro”
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Authors For their contribution to t
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Chapter IV: Web Vulnerabilities....
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INTRODUCTION TO TCP/IP NETWORKS Net
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In case of reception, each layer wi
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ARP heading: The Hackademy DMP -11/
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Version: 4 bits. The version field
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TCP header: Source Port: 16 bits. T
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TCP/UDP Port Notions: Multiplexing/
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Start the MS-DOS control interface
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CHAPTER I INFORMATION ACQUISITION T
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expires: 2005-10-28 11:28:29 create
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In the answer field you will find:
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nmap -sP 192.168.124.0/24 Starting
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C) Fingerprinting the system The nm
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It is also possible to specify seve
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SMTP : Simple Mail Transfer Protoco
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SNMP : Simple Network Management Pr
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Here is a scan report obtained with
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# nmap 3.50 scan initiated Wed May
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CHAPTER II CLIENT VULNERABILITIES T
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File viruses: These viruses attack
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Retroviruses are a bit more aggress
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However, do check in the start file
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Creating a hidden gateway : But the
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infallible. It consists in associat
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DOS commands if conditional pluggin
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Each one of these zones can be conf
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The javascript code destined to dow
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The wizard will ask you the locatio
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CHAPTER III NETWORKS VULNERABILITIE
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Here, the connection between the ro
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Using the "Follow TCP Stream" optio
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You have just created a new filter.
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This handshake takes place as follo
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Third step Illustration 3: ACK To c
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The methodology of this type of att
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The case of the UDP protocol Unlike
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nc -l -v -n -p 887 Injection of com
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Let's try to connect again from mac
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We can see that Ethereal has seen i
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Conclusion The covert channel princ
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It is the IP protocol that is going
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We will simultaneously launch the p
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5.Connections Hijacking We are goin
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Let us now display the contents of
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B) DNS hijacking The DNS protocol i
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ssh2 protection The server's public
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B) SSL The SSL protocol functions w
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Recent viruses use the resources of
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1.Site Mapping The first thing a ha
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Scan_web.php Scan_web.php is a PHP
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The phpinfo() function gives the ha
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ack to an error message */ if ($ok
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System() Function The System() func
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Uploading via PHP Quite often, one
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inc.php file page1.php file By ty
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There are other functions of the sa
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i=0; j=0; while (data[i] != '=') {
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system("/usr/bin/sendmail -t test@t
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In all cases, it is also important
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It is therefore vital to understand
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The error means that the SQL reques
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} else{ } $query = "UPDATE users SE
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And here is the result: We are now
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We can see that CrashFr is now in b
Page 133 and 134: Once the client has entered his pse
Page 135 and 136: CHAPTER V APPLICATION VULNERABILITI
Page 137 and 138: 2.Buffer Overflow Buffer overflow t
Page 139 and 140: xdream@Laptop:/$ readelf -a /bin/ls
Page 141 and 142: A few assembler notions Let us see
Page 143 and 144: Let us study the representation of
Page 145 and 146: The program segfaulted when trying
Page 147 and 148: We can determine that at address 0x
Page 149 and 150: The we can look in libc6 for the ad
Page 151 and 152: We can also see in the sources a ca
Page 153 and 154: 3. String Format Presentation Strin
Page 155 and 156: So when the '%n' indicator is encou
Page 157 and 158: Using dtors. bash# objdump -s -j .d
Page 159 and 160: Security The only solution here is
Page 161 and 162: This program is “suidroot”, whi
Page 163 and 164: } } printf("Opening of file authori
Page 165 and 166: } flock(fd, LOCK_UN); //Closing of
Page 167 and 168: 1.Authentication Brute force In thi
Page 169 and 170: Hybrid attack T launch a hybrid att
Page 171 and 172: LC3 offers 4 methods. 1. From the l
Page 173 and 174: B) The Unix passwd file On Unix sys
Page 175 and 176: C) Authentication service One of th
Page 177 and 178: The first thing to do is to create
Page 179 and 180: B) Backdoor kernel Backdoor kernels
Page 181 and 182: CHAPTER VII GENERIC SECURITY PROCED
Page 183: Configure snort so that it can stor
Page 187 and 188: Here is a simple scenario. Let us t
Page 189 and 190: Step 2 : Encoding and signing (PGP)
Page 191 and 192: 12.You can choose a separate Signat
Page 193 and 194: B) Cryptography of hard drives Wind
Page 195 and 196: The first time this operation is do
Page 197 and 198: Integrity controller on Linux There
Page 199 and 200: There are three protection levels:
Page 201 and 202: "Program control" Section The “pr
Page 203 and 204: The rules take the following values
Page 205 and 206: 7.VPN What is a Virtual Private Net
Page 207 and 208: Contact 1 Villa du clos de Malevart
Page 209: Created by trainers from The Hackad
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