PHP.Brobot
Posted: January 11, 2013
Threat Metric
The following fields listed on the Threat Meter containing a specific value, are explained in detail below:
Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.
Detection Count: The collective number of confirmed and suspected cases of a particular malware threat. The detection count is calculated from infected PCs retrieved from diagnostic and scan log reports generated by SpyHunter.
Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.
Trend Path: The Trend Path, utilizing an up arrow, down arrow or equal symbol, represents the level of recent movement of a particular threat. Up arrows represent an increase, down arrows represent a decline and the equal symbol represent no change to a threat's recent movement.
% Impact (Last 7 Days): This demonstrates a 7-day period change in the frequency of a malware threat infecting PCs. The percentage impact correlates directly to the current Trend Path to determine a rise or decline in the percentage.
| Threat Level: | 9/10 |
|---|---|
| Infected PCs: | 61 |
| First Seen: | January 11, 2013 |
|---|---|
| OS(es) Affected: | Windows |
Brobot is a backdoor Trojan that uses any compromised PC to launch DDoS attacks – attacks that flood various websites with artificial traffic in an effort to crash them. Unlike most backdoor Trojans, Brobot hasn't shown any other major capabilities, but its campaign does appear to be receiving ongoing development for enhanced evasion of typical security features, including those that could be used to block its website-crashing attacks. Since Brobot does not display blatant evidence of its presence on the infected PC, SpywareRemove.com malware researchers encourage you to use anti-malware products to detect or remove Brobot in all cases. The latest cyber-terrorist campaign that distributes Brobot is not 'officially' set to launch until May 7th, but at this time Brobot is, nonetheless, being distributed in the wild as part of other campaigns, and currently is engaged in DDoSing American financial websites.
When Politics Comes to Your Hard Drive in a Trojan Package
Currently, Brobot is reported primarily for its upcoming part in OpUSA, an attack campaign supported by the Izz ad-Din al-Qassam Cyber Fighters. Similar operations, such as Operation Ababil, also have used the Brobot's botnet to conduct attacks against United States websites, typically with the aim of making a critical political statement (such as demanding that the 'Innocence of Muslims' movie be removed from Youtube). Brobot, as a specialized backdoor Trojan, is designed to infect unrelated computers and link them to its botnet, through which Brobot can launch Distributed-Denial-of-Service attacks against any websites Brobot pleases. So far, SpywareRemove.com malware experts only have confirmed DDoS attacks against various American financial institutions, such as prominent banks, but the Brobot infection that enables these attacks are a concern for even casual PC users with Internet access.
Even while both anti-malware companies and US banks have been racing to detect Brobot's attacks and minimize its potential for crashing websites, Brobot has, in turn, been continuously upgraded. New scripts in Brobot may allow Brobot to avoid being detected by standard security protocols, and Brobot has been confirmed to spoof such information as the website visitor's access cookie, referrer and user-agent string. The Izz ad-Din al-Qassam Cyber Fighters have used Brobot to target over a dozen separate financial institutions, forcing their sites down for periods of time that add up to hundreds of hours.
Kicking this Bro Out of Your Hard Drive
Although Brobot is (as far as major US banks are concerned) a rather inconvenient and business-impeding PC threat, for a casual PC users, Brobot actually is less dangerous than a common backdoor Trojan. So far, SpywareRemove.com malware analysts haven't seen any evidence of Brobot being capable of performing major attacks besides its DDoS functions, whereas most backdoor Trojans also include functions for stealing private information, disabling security programs or installing other malware.
Nonetheless, a Brobot infection may be installed right along with other kinds of malicious software that are more dangerous than Brobot, by itself, would be. As a result, removing Brobot quickly always is recommended, and SpywareRemove.com malware researchers encourage using updated anti-malware software for this purpose – particularly since Brobot is being updated to avoid being detected with notable regularity.
Use SpyHunter to Detect and Remove PC Threats
If you are concerned that malware or PC threats similar to PHP.Brobot may have infected your computer, we recommend you start an in-depth system scan with SpyHunter. SpyHunter is an advanced malware protection and remediation application that offers subscribers a comprehensive method for protecting PCs from malware, in addition to providing one-on-one technical support service.
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Why can't I open any program including SpyHunter? You may have a malware file running in memory that kills any programs that you try to launch on your PC. Tip: Download SpyHunter from a clean computer, copy it to a USB thumb drive, DVD or CD, then install it on the infected PC and run SpyHunter's malware scanner.
Technical Details
File System Modifications
Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.
The following files were created in the system:70683b631de374240a3bb95582ade6c7
File name: 70683b631de374240a3bb95582ade6c7Size: 3.25 KB (3250 bytes)
MD5: 70683b631de374240a3bb95582ade6c7
Detection count: 77
Group: Malware file
Last Updated: January 15, 2013
5d9c51bc05c97d57f79d9365c68e8592
File name: 5d9c51bc05c97d57f79d9365c68e8592Size: 4.7 KB (4704 bytes)
MD5: 5d9c51bc05c97d57f79d9365c68e8592
Detection count: 75
Group: Malware file
Last Updated: January 15, 2013
9f6451282111378b4d835f3f28e681df
File name: 9f6451282111378b4d835f3f28e681dfSize: 3.85 KB (3854 bytes)
MD5: 9f6451282111378b4d835f3f28e681df
Detection count: 66
Group: Malware file
Last Updated: January 15, 2013
run.pl
File name: run.plMime Type: unknown/pl
Group: Malware file
f1.pl
File name: f1.plMime Type: unknown/pl
Group: Malware file
start.php
File name: start.phpMime Type: unknown/php
Group: Malware file
srcurl.php
File name: srcurl.phpMime Type: unknown/php
Group: Malware file
stcp.php
File name: stcp.phpMime Type: unknown/php
Group: Malware file
startphp.php
File name: startphp.phpMime Type: unknown/php
Group: Malware file
stpf.php
File name: stpf.phpMime Type: unknown/php
Group: Malware file
stmdu.php
File name: stmdu.phpMime Type: unknown/php
Group: Malware file
stph.php
File name: stph.phpMime Type: unknown/php
Group: Malware file
stp.php
File name: stp.phpMime Type: unknown/php
Group: Malware file
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