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Backdoors are server-side malicious scripts which are intended to perpetrate malicious acccess to the server. The typical example of such backdoors are various File Managers, Web Shells, tools for bypassing admin login or various one-purpose scripts allowing the attacker to upload and run another type of malicious scripts. The payload is PHP based, thus intended for server-side use and the payload is executed directly on the server, while the site is loaded. Only the payload result (such as Web Shell environment) is visible in the browser, not the malicious code itself. It's very common, that backdoors don't have any visible signs in the site code and it's impossible to detect them by accessing the infected site from outside. Server level analysis is necessary in case of infection by this type of malware.The typical example of such backdoors are various File Managers, Web Shells, tools for bypassing admin login or various one-purpose scripts allowing the attacker to upload and run another type of malicious scripts. The payload is PHP based, thus intended for server-side use and the payload is executed directly on the server, while the site is loaded. Only the payload result (such as Web Shell environment) is visible in the browser, not the malicious code itself. It's very common, that backdoors don't have any visible signs in the site code and it's impossible to detect them by accessing the infected site from outside. Server level analysis is necessary in case of infection by this type of malware.

php.backdoor.CodeNewbieCrew-shell is a complex web-shell with ability to execute other code using various system functions such as system(), exec(), passthru() or shell_exec(). It has also mailing functions and MySQL editor implemented which makes it powerfull backdoor. Another interesting fact is, that the unlike other web-shells which their authors often claims to be legitimate tools, the purpose of CodeNewbieCrew-shell is to be malicious tool and the authors are not trying to mask it. It has several defacement routines implemented as well.

Affecting

Any PHP based web site (often through outdated WordPress, Joomla, osCommerce, Magento, Drupal and stolen passwords).

Cleanup

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Dump



This part of code demonstrates some of the options the attacker has while leaving the defacing message on site:

<select name="hackmode" class="inputz" >
<option >------------------------Pilih Salah Satu------------------------</option>
<option value="1">known vulnerability (i.e. unpatched system)</option>
<option value="2" >undisclosed (new) vulnerability</option>
<option value="3" >configuration / admin. mistake</option>
<option value="4" >brute force attack</option>
<option value="5" >social engineering</option>
<option value="6" >Web Server intrusion</option>
<option value="7" >Web Server external module intrusion</option>
<option value="8" >Mail Server intrusion</option>
<option value="9" >FTP Server intrusion</option>
<option value="10" >SSH Server intrusion</option>
<option value="11" >Telnet Server intrusion</option>
<option value="12" >RPC Server intrusion</option>
<option value="13" >Shares misconfiguration</option>
<option value="14" >Other Server intrusion</option>
<option value="15" >SQL Injection</option>
<option value="16" >URL Poisoning</option>
<option value="17" >File Inclusion</option>
<option value="18" >Other Web Application bug</option>
<option value="19" >Remote administrative panel access bruteforcing</option>
<option value="20" >Remote administrative panel access password guessing</option>
<option value="21" >Remote administrative panel access social engineering</option>
<option value="22" >Attack against administrator(password stealing/sniffing)</option>
<option value="23" >Access credentials through Man In the Middle attack</option>
<option value="24" >Remote service password guessing</option>
<option value="25" >Remote service password bruteforce</option>
<option value="26" >Rerouting after attacking the Firewall</option>
<option value="27" >Rerouting after attacking the Router</option>
<option value="28" >DNS attack through social engineering</option>
<option value="29" >DNS attack through cache poisoning</option>
<option value="30" >Not available</option>
</select>

<select name="reason" class="inputz" >
<option >-------------Pilih Salah Satu---------------</option>
<option value="1" >Heh...just for fun!</option>
<option value="2" >Revenge against that website</option>
<option value="3" >Political reasons</option>
<option value="4" >As a challenge</option>
<option value="5" >I just want to be the best defacer</option>
<option value="6" >Patriotism</option>
<option value="7" >Not available</option>
</select>