UNDERCODE SECURITY
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πŸ¦‘WELCOME IN UNDERCODE TESTING FOR LEARN HACKING | PROGRAMMING | SECURITY & more..

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πŸ¦‘There are 8 main ways to stay away from spam easily:

1. Use a mail filtering system

This should be a common method for many people, and large mail service providers will also provide such services, but it is still not precise enough.

2. Use a virus filtering system

A lot of spam emails use Trojan horse viruses. If you keep the virus out, the related spam emails will not be able to take advantage.

3. Protect your email address

It’s best to separate mailboxes for different purposes. Register for unimportant website forums and the like. You can apply for a "Got Box". You don’t expose your email address everywhere. There is still little chance for spam to find you through guessing. of.

4. Test who is "throwing garbage" to you

If you suspect that some sites are sending you spam, you can use a different mailbox to register and try it, and block it after finding the source.

5. What to do after receiving spam

Do not open it first, because it may contain a virus, and then return the letter, which may make some spam servers think that your mailbox is no longer available.

6. Unsubscribe (Opt-out) letters

A bill in the United States is that users can opt-out for any commercial mail, and the company sending the commercial mail must clearly indicate that the mail is commercial or advertising in nature, and provide the recipient to opt-out Ways, including replyable addresses or accessible websites. Once the email sender receives the user's opt-out request, he must respond within 10 days and stop sending emails to the user. It may not work in China...

7. Pay attention to the registered name of the mail

One way to stay away from spam is to choose a suitable username. Many people like to use their own names or addresses like aaa123, which can be easily deciphered by the dictionary.

8. Keep away from dangerous areas

According to statistics, the three types of sites with the most mail viruses are gambling, gaming, and adult sites. Pay special attention to these sites.

The above 8 methods teach you the principles of spam easily. I hope everyone can refer to and learn together.

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written by Undercode
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πŸ¦‘PREMIUM PROXIES SUPER FRESH 1 MINUTES :


96.9.77.71 8080 1 min ago
4208 ms 12% (96) kh Cambodia - Phnom Penh Elite

81.201.60.130 80 11 min ago
1351 ms 98% (110) cz Czech Republic - Pilsen Elite

89.212.164.206 80 11 min ago
738 ms 54% (44) si Slovenia - Koper Elite

52.179.231.206 80 12 min ago
679 ms 98% (295) us United States - Boydton Elite

51.254.237.77 3129 12 min ago
2327 ms 60% (102) nl Netherlands Elite

46.250.171.31 8080 12 min ago
668 ms 36% (123) pl Poland - Poznan Elite

23.101.2.247 81 13 min ago
636 ms 28% (192) hk Hong Kong - Central Elite

194.88.104.136 8888 13 min ago
605 ms 90% (52) nl Netherlands Elite

194.88.104.164 8888 13 min ago
599 ms 90% (52) nl Netherlands Elite

194.88.104.64 8888 13 min ago
587 ms 90% (52) nl Netherlands Elite

20.43.156.109 80 13 min ago
1120 ms 85% (123) sg Singapore - Singapore Elite

20.44.193.208 80 13 min ago
1178 ms 85% (105) sg Singapore - Singapore Elite

20.43.156.27 80 13 min ago
1112 ms 83% (128) sg Singapore - Singapore Elite

194.88.104.62 8888 13 min ago
607 ms 91% (57) nl Netherlands Elite

178.33.251.230 3129 13 min ago
1957 ms 63% (82) fr France Elite

181.118.167.104 80 13 min ago
1198 ms 98% (267) cl Chile - Santiago Elite

188.165.141.114 3129 13 min ago
2051 ms 63% (146) fi Finland Elite

178.128.211.134 6868 13 min ago
740 ms 7% (65) sg Singapore Elite

144.217.101.245 3129 13 min ago
706 ms 65% (70) ca Canada - Beauharnois Elite

18.132.3.81 80 13 min ago
565 ms 34% (32) us United States Elite

171.244.19.212 8080 13 min ago
1110 ms 100% (40) vn Vietnam - Hanoi Elite

103.216.51.210 8191 14 min ago
2086 ms 85% (103) kh Cambodia - Phnom Penh Elite

52.149.152.236 80 14 min ago
278 ms 33% (53) us United States - Washington Elite

102.67.19.132 8080 14 min ago
4053 ms 7% (56) ng Nigeria - Lagos Elite

118.126.105.133 83 16 min ago
1357 ms 100% (1) cn China - Beijing Elite

159.8.114.37 8123 17 min ago
1821 ms 63% (218) fr France - Clichy Elite

120.79.186.104 8118 20 min ago
1950 ms 16% (183) cn China - Hangzhou Elite

95.38.14.3 8080 43 min ago
4009 ms 21% (102) ir Iran Elite

88.99.10.254 1080 43 min ago
3523 ms 62% (113) de Germany Elite

88.99.10.252 1080 43 min ago
3571 ms 64% (93) de Germany Elite

88.99.10.255 1080 43 min ago
3364 ms 71% (119) de Germany Elite

88.99.10.253 1080 43 min ago
3425 ms 67% (109) de Germany Elite

82.200.233.4 3128 1 hour ago
4388 ms 50% (231) kz Kazakhstan Elite

85.10.219.102 1080 1 hour ago
3363 ms 50% (144) de Germany Elite

85.10.219.103 1080 1 hour ago
3426 ms 46% (136) de Germany Elite

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πŸ¦‘NMAP TIPS :
#FastTips

> The NMAP script engine is the most powerful and flexible feature of NMAP. It allows users to write simple scripts to automate various network tasks, basically these scripts are written in lua language. Usually NMAP script engine can do many things, such as:

1) Network discovery
This is the basic function of NMAP. Examples include finding the whois information of the target domain name, querying the ownership of the target ip on ARIN, RIPE, or APNIC, finding open ports, SNMP query and listing available NFS/SMB/RPC shares and services .

2) Vulnerability detection
When a new vulnerability is discovered, you want to quickly scan the network to identify vulnerable systems before intruders. Although NMAP is not a comprehensive vulnerability scanner, NSE is powerful enough to handle demanding vulnerability checks. Many vulnerable scripts are already available, and more scripts are planned.

3) Backdoor detection
Many attackers and some automated worms will leave back doors so that they can be re-entered later. Some of them can be detected by NMAP based on regular expressions.

4) Exploit
As a scripting language, NSE can even exploit vulnerabilities, not just find them. The ability to add custom attack scripts may be valuable to some people (especially penetration testers), but it is not intended to develop NMAP into something like the metasploit framework.

5) Do not Ping
The -PN option instructs NMAP to skip the default discovery check and perform a full port scan of the target. This is very useful when scanning hosts protected by firewalls that prevent ping probes.

Syntax: NMAP -PN target

6) Ping scan only
The option -sP tells NMAP to ping only the host. It is very useful when you want to detect which of a batch of IP addresses are reachable. By specifying a specific target, you can get more information, such as the MAC address.

Command: NMAP -sP target

7) TCP SYN scan
Before we start, we must know what a SYN packet is.

Basically a syn package is used to initiate a connection between two hosts.

Send a SYN packet to the target system in TCP SYN ping and listen for the response. This alternative discovery method is useful for hosts that are configured to block standard ICMP ping messages.

8) TCP Ack Ping scan
This type of scan will only scan acknowledgement (ACK) packets.

Option -PA performs TCP Ack Ping scan on the specified host.

Command: NAMP -PA target

9) UDP Ping scan
Option -P performs UDP Ack Ping scan on the specified host

10) ICMP Echo ping
Option -PE will perform ICMP (Internet Control Message Protocol) echo Ping to the specified host.

Command: NMAP -PE target

11) ICMP address mask ping
Option -PM performs ICMP address mask ping.

Command: nmap --PM target

12) List scan
The option -sL will display a list and perform a reverse DNS lookup for the specified IP address.

Syntax: NMAP -sL target

#FastTips
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The -PS option performs TCP SYN Ping.

Command: NMAP -PS host
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https://mega.nz/folder/RNA0VIRQ#vHeCbi_NwTcIR2-WaZLXmQ
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πŸ¦‘How to Change PHP's default Fastcgi mode to ISAPI mode (only run in Windows environment)
#FastTips

1) Download the ZIP file package of PHP, the download address is http://www.php.net (note that the version must correspond)

2) Copy the php4isapi.dll in the sapi directory to the c:\php directory

3) Enter the virtual host "Website Management"-"Virtual Host" of the management platform--In the server settings, modify the PHP mapping to change the original:
.php,C:\PHP\php.exe,5,GET,HEAD,POST,TRACE|
Change Into:
.php,C:\PHP\php4isapi.dll,5,GET,HEAD,POST,TRACE|

4) (Required only for IIS 6) Open the IIS manager, click Web service extension, click the properties of php, "Required File"---Timing--Select "C:\PHP\php4isapi.dll", after confirming, PHP can call.

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πŸ¦‘Mega Hack Pack
Size: 10.41Gb

Covers all basics of Ethical Hacking .

And how to use all the tools used in Hacking.

https://mega.nz/folder/ZNRUmara#N9cVWXDMj37Tp3IXCyyfIQ

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πŸ¦‘Nine practical methods to break through IDS intrusion detection system

The first trick: "/./" string insertion method

In view of the special role of "./", we can insert it into the URL to achieve URL transformation. For example, for /msadc/msadcs.dll, we can rewrite it as /././msadc/././msadcs.dll, /./msadc/.//./msadcs.dll and other forms to disrupt IDS The identification mark analysis engine realizes the purpose of deceiving IDS. Moreover, the URL after the rewrite is equivalent to the unmodified URL. The author has shown through experiments that this method can bypass IDS such as Snort.

The second trick: "00" ASCII code

Some time ago, the Internet upload vulnerability was used to exploit this feature, and everyone must be familiar with it. Its principle is that when the computer processes the string, it automatically truncates at the ASCII code 00. We can rewrite /msadc/msadcs.dll to /msadc/msadcs.dll Iloveheikefangxian, use Winhex to change the space between .dll and Ilove to the ASCII code of 00, save it, and submit it with NC and pipe. In this way, in the view of some IDS, the /msadc/msadcs.dll Iloveheikefangxian is not the same as the string of attack intent specified in its rule set file, so it will be indifferent to the behavior of the attacker. Look! How extensive is the application of the principle of "automatically truncating at ASCII code 00 when the computer processes a string"! From a philosophical point of view, things are related to each other. We should think more and dig out the internal laws, so There will be new discoveries.

The third trick: use the path separator "\"

For web servers like Microsoft's IIS, "\" can also be used as a path separator like "/". Some IDS did not consider the non-standard path separator "\" when setting the rule set file. If we rewrite /msadc/msadcs.dll to \msadc\ msadcs.dll, we can escape snort, because there is no identification mark of \msadc\ msadcs.dll in the snort rule set file. It is worth mentioning that the path separator "\" also has a magical effect, which is the "%5c" violent library method mentioned in the "Hacker Line of Defense" some time ago. "%5c" is the hexadecimal representation of "\".

Fourth trick: hexadecimal encoding

For a character, we can use the escape symbol "%" plus its hexadecimal ASCII code to represent it. For example, the first character "/" in /msadc/msadcs.dll can be expressed as %2F, and the following characters can be expressed by their corresponding hexadecimal ASCII code combined with "%". The URL encoded by this method It is no longer what it was before, and there may be no encoded string in the IDS rule set file, so IDS can be bypassed. But this method is invalid for IDS that uses HTTP preprocessing technology.

The fifth trick. Illegal Unicode encoding

UTF-8 encoding allows the character set to contain more than 256 characters, so it also allows more than 8 bits of encoding. The hexadecimal ASCII code of the "/" character is 2F, and the binary number is 00101111. The standard method for representing 2F in UTF-8 format is still 2F, but multi-byte UTF-8 can also be used to represent 2F. The character "/" can be represented by single-byte, double-byte, and three-byte UTF-8 encoding as shown in the following table:

"/" character representation binary hexadecimal

Single byte 0xxxxxxx 00101111 2F

Double byte 110xxxxx 10xxxxxx 11000000 10101111 C0 AF

Three bytes 1110xxxx 10xxxxxx 10xxxxxx 11100000 10000000 10101111 E0 80 AF

According to this method, we can encode the entire string accordingly. Although the resources that the encoded URLs ultimately point to are all the same, their expressions are different, and the filter string may not exist in the IDS rule set file, thus achieving the goal of breaking IDS.

Sixth trick: redundant coding method