PHP_CRYPWEB.A
PHP/Webcoder.A trojan (NOD32), PHP.Ransomcrypt.A (NORTON_BETA),
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Trojan may arrive bundled with malware packages as a malware component. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be hosted on a website and run when a user accesses the said website.
It requires its main component to successfully perform its intended routine.
TECHNICAL DETAILS
798 bytes
Script
No
03 Feb 2015
Arrival Details
This Trojan may arrive bundled with malware packages as a malware component.
It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It may be hosted on a website and run when a user accesses the said website.
Other Details
This Trojan requires the following additional components to properly run:
- factory.php
- functions_user.php
- ucp_activate,php
- ucp_profile.php
It requires its main component to successfully perform its intended routine.
NOTES:
It connects to the following URL to download the contents of the file that will be used to compute for its crypt key
- http://{BLOCKED}3.{BLOCKED}3.120.108/sfdoif89d7sf8d979dfgf/sdfds90f8d9s0f8d0f89.txt
It modifies the following file to allow encryption
- ../config.php
It retrieves all the entries for the following database table
- USERS_TABLE (phpbb framework constant)
It encrypts the following variables for every entry in the database search result
- user_password
- user_email
It drops copies of the following files (source) into the following destination paths (dest)
(source)
- factory.php
- functions_user.php
- ucp_activate.php
- ucp_profile.php
(dest)
- ../phpbb/db/driver/factory.php
- ../includes/functions_user.php
- ../includes/ucp/ucp_activate.php
- ../includes/ucp/ucp_profile.php
SOLUTION
9.700
11.456.05
03 Feb 2015
11.457.00
04 Feb 2015
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Scan your computer with your Trend Micro product to delete files detected as PHP_CRYPWEB.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
NOTES:
Restore the encrypted files from backup.
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