DarkComet

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
DarkComet
Developer(s) Jean-Pierre Lesueur (DarkCoderSc)
Stable release
5.3.1
Operating system Microsoft Windows
Type Remote Administration Tool
License freeware
Website darkcometrat.com[1]

DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur (known as DarkCoderSc[1]), an independent programmer and computer security coder from France. Although the RAT was developed back in 2008, it began to proliferate at the start of 2012.

DarkComet allows a user to control the system with a Graphical User Interface (GUI). It has many features which allows a user to use it as administrative remote help tool; however, DarkComet has many features which can be used maliciously. DarkComet is commonly used to spy on the victims by taking screen captures, key-logging, or password stealing.

History of DarkComet[edit]

Syria[edit]

In 2014 DarkComet was linked to the Syrian conflict. People in Syria began using secure connections to bypass the government's censorship and the surveillance of the internet. This caused the Syrian Government to resort to using RATs to spy on its civilians. Many believe that this is what caused the arrests of many activists within Syria.[2]

The RAT was distributed via a "booby-trapped Skype chat message" which consisted of a message with a Facebook icon which was actually an executable file that was designed to install DarkComet.[3] Once infected, the victim's machine would try to send the message to other people with the same booby-trapped Skype chat message.

Once DarkComet was linked to the Syrian regime, Lesueur stopped developing the tool stating that, “I never imagined it would be used by a government for spying,” he said. “If I had known that, I would never have created such a tool.”[2]

Target Gamers, Military and Governments[edit]

In 2012 Arbos Network company found evidence of DarkComet being used to target military and gamers by unknown hackers from Africa. At the time, they mainly targeted the United States.[4]

Je Suis Charlie[edit]

In the wake of the January 7, 2015, attack on the Charlie Hebdo magazine in Paris, hackers used the "#JeSuisCharlie" slogan to trick people into downloading DarkComet. DarkComet was disguised as a picture of a newborn baby whose wristband read "Je suis Charlie." Once the picture was downloaded, the users became compromised.[5] Hackers took advantage of the disaster to compromise as many systems as possible. DarkComet was spotted within 24 hours of the attack.

Architecture and Features[edit]

Architecture[edit]

DarkComet, like many other RATs, use a reverse-socket architecture. The client is the system which is not infected with DarkComet. The client is the system with the GUI which controls the servers. The servers are all the infected systems. The servers do not contain a GUI.[6]

When DarkComet executes, the server connects to the client and allows the client to control and monitor the server. At this point the client can use any of the features which the GUI contains. A socket is opened on the server and waits to receive packets from the controller, and executes the commands when received.

Features[edit]

The following list of features is not exhaustive but are the critical ones that make DarkComet a dangerous tool. Many of these features can be used to completely take over a system and allows the client full access when granted via UAC.

  • Spy Functions
    • Webcam Capture
    • Sound Capture
    • Remote Desktop
    • Keylogger
  • Network Functions
    • Active Ports
    • Network Shares
    • Server Socks5
    • LAN Computers
    • Net Gateway
    • IP Scanner
    • Url Download
    • Browse Page
    • Redirect IP/Port
    • WiFi Access Points
  • Computer Power
    • Poweroff
    • Shutdown
    • Restart
    • Logoff
  • Server Actions
    • Lock Computer
    • Restart Server
    • Close Server
    • Uninstall Server
    • Upload and Execute
    • Remote Edit Service
  • Update Server
    • From URL
    • From File

DarkComet also has some "Fun Features" which many people argues shows that the tool was not built to be used maliciously.

  • Fun Features
    • Fun Manager
    • Piano
    • Message Box
    • Microsoft Reader
    • Remote Chat

Detection[edit]

DarkComet is a widely known piece of malware, If you install an antivirus, or a darkcomet remover, you can un-infect your computer quickly. Its target machines are typically anything from Windows XP, all the way up to Windows 10.

Common anti-virus tags for a dark comet application are as follow:

- Trojan[Backdoor]/Win32.DarkKomet.xyk

- BDS/DarkKomet.GS

- Backdoor.Win32.DarkKomet!O

- RAT.DarkComet

When a computer is infected, it tries to create a connection via socket to the controllers computer. Once the connection has been established the infected computer listens for commands from the controller, if the controller sends out a command, the infected computer receives it, and executes whatever function is sent.

References[edit]

  1. ^ a b "DarkCoderSc | SOLDIERX.COM". SoldierX. Retrieved 13 October 2017. 
  2. ^ a b McMillan, Robert. "How the Boy Next Door Accidentally Built a Syrian Spy Tool". Wired. 
  3. ^ "Spy code creator kills project after Syrian abuse". BBC. 10 July 2012. 
  4. ^ Wilson, Curt. "Exterminating the RAT Part I: Dissecting Dark Comet Campaigns". Arbor. 
  5. ^ Vinton, Kate. "How Hackers Are Using #JeSuisCharlie To Spread Malware". Forbes. 
  6. ^ Denbow, Shawn; Hertz, Jesse. "pest control: taming the rats" (PDF). Matasano. 

External links[edit]