Home Malware Programs Trojans RemcosRAT

RemcosRAT

Posted: October 16, 2016

Threat Metric

Ranking: 2,186
Threat Level: 8/10
Infected PCs: 61,201
First Seen: October 16, 2016
Last Seen: October 17, 2023
OS(es) Affected: Windows


RemcosRAT is a Threatening Remote Administration Tool (RAT) that may allow attackers to control the victim's computer remotely, exfiltrate data from it, and perform a large number of other actions that may help them gain access to private information, payment details, passwords and valuable files. RemcosRAT is detected by many popular anti-malware software currently so that installing a reliable anti-malware solution is certainly one of the best ways to protect yourself from this threat. While RemcosRAT is active, it can inject its corrupted payload in existing processes silently, therefore masking its presence from the user. If the infection goes unnoticed, then RemcomRAT will allow its operators to perform the following operations on the victim's machine:

  • Upload, download and modify files.
  • Execute commands remotely.
  • Take screenshots from the user's desktop or webcam (if available).
  • Copy clipboard data.
  • Log keystrokes.
  • Launch and terminate processes.
  • Install additional threats.M/li>

RemcosRAT features a large number of modules that may provide attackers with full control over the victim's computer. This threat may often be spread with the help of fake software downloads, fake driver or software updates, bogus e-mail attachments and pirated software.

Popular anti-malware software suites should be able to take care of all corrupted files and Registry entries that RemcosRAt may have created on the victim's machine easily. If you suspect that your computer might be infected with this threat or a similar variant, then you should take the necessary actions to install and run an anti-malware scanner that can resolve the issue in a matter of minutes.

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:



321.exe File name: 321.exe
Size: 262.14 KB (262144 bytes)
MD5: d435cebd8266fa44111ece457a1bfba1
Detection count: 105
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: January 13, 2020
file.exe File name: file.exe
Size: 782.33 KB (782336 bytes)
MD5: 601ceb7114eefefd1579fae7b0236e66
Detection count: 85
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
e12cd6fe497b42212fa8c9c19bf51088 File name: e12cd6fe497b42212fa8c9c19bf51088
Size: 745.47 KB (745472 bytes)
MD5: e12cd6fe497b42212fa8c9c19bf51088
Detection count: 84
Group: Malware file
Last Updated: August 16, 2017
file.exe File name: file.exe
Size: 446.46 KB (446464 bytes)
MD5: 5f50bcd2cad547c4e766bdd7992bc12a
Detection count: 82
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
file.exe File name: file.exe
Size: 581.63 KB (581632 bytes)
MD5: 20dc88560b9e77f61c8a88f8bcf6571f
Detection count: 66
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
file.exe File name: file.exe
Size: 178.28 KB (178280 bytes)
MD5: 390ebb54156149b66b77316a8462e57d
Detection count: 55
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: July 17, 2017
file.exe File name: file.exe
Size: 364.54 KB (364544 bytes)
MD5: b79dcc45b3d160bce8a462abb44e9490
Detection count: 54
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: July 17, 2017
file.exe File name: file.exe
Size: 264.7 KB (264704 bytes)
MD5: 8671446732d37b3ad4c120ca2b39cfca
Detection count: 45
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: October 16, 2016
file.exe File name: file.exe
Size: 237.56 KB (237568 bytes)
MD5: c9923150d5c18e4932ed449c576f7942
Detection count: 30
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
File.exe File name: File.exe
Size: 421.88 KB (421888 bytes)
MD5: 35b954d9a5435f369c59cd9d2515c931
Detection count: 21
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: January 23, 2017
file.exe File name: file.exe
Size: 372.73 KB (372736 bytes)
MD5: f48496b58f99bb6ec9bc35e5e8dc63b8
Detection count: 14
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: October 30, 2017
50a62912a3a282b1b11f78f23d0e5906 File name: 50a62912a3a282b1b11f78f23d0e5906
Size: 632.83 KB (632832 bytes)
MD5: 50a62912a3a282b1b11f78f23d0e5906
Detection count: 14
Group: Malware file
%SYSTEMDRIVE%\Users\<username>\appdata\roaming\microsoft\windows\dsvhelper\windslfj.exe File name: windslfj.exe
Size: 897.53 KB (897536 bytes)
MD5: 968650761a5d13c26197dbf26c56552a
Detection count: 12
File type: Executable File
Mime Type: unknown/exe
Path: %SYSTEMDRIVE%\Users\<username>\appdata\roaming\microsoft\windows\dsvhelper\windslfj.exe
Group: Malware file
Last Updated: June 26, 2020
%SYSTEMDRIVE%\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b2debaab8e4ea9a883794201f979e60138c810738e4f184ea9b8873d84f3ba59.exe\file.exe File name: file.exe
Size: 673.79 KB (673792 bytes)
MD5: 83dd9dacb72eaa793e982882809eb9d5
Detection count: 12
File type: Executable File
Mime Type: unknown/exe
Path: %SYSTEMDRIVE%\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b2debaab8e4ea9a883794201f979e60138c810738e4f184ea9b8873d84f3ba59.exe
Group: Malware file
Last Updated: June 26, 2020
C:\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Legit Program.exe File name: Legit Program.exe
Size: 192.51 KB (192512 bytes)
MD5: cd2c23deea7f1eb6b19a42fd3affb0ee
Detection count: 7
File type: Executable File
Mime Type: unknown/exe
Path: C:\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
Group: Malware file
Last Updated: April 12, 2018
C:\Users\<username>\AppData\Roaming\unseen.exe File name: unseen.exe
Size: 250.68 KB (250687 bytes)
MD5: d8cff8ec41992f25ef3127e32e379e3b
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: C:\Users\<username>\AppData\Roaming
Group: Malware file
Last Updated: March 28, 2019
file.exe File name: file.exe
Size: 311.29 KB (311296 bytes)
MD5: 1645b2f23ece660689172547bd2fde53
Detection count: 4
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
file.exe File name: file.exe
Size: 249.85 KB (249856 bytes)
MD5: c41f7add0295861e60501373d87d586d
Detection count: 2
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

Registry Modifications

The following newly produced Registry Values are:

Regexp file mask%APPDATA%\aitagent\aitagent.exe%APPDATA%\Analysernes1.exe%APPDATA%\Audiohd.exe%APPDATA%\Bagsmks8.exe%APPDATA%\Behandlingens[RANDOM CHARACTERS].exe%APPDATA%\Brnevrelser[RANDOM CHARACTERS].exe%appdata%\calc.exe%APPDATA%\chrome\chrome.exe%APPDATA%\deseret.pif%APPDATA%\explorer\explore.exe%APPDATA%\Extortioner.exe%APPDATA%\firewall.exe%APPDATA%\foc\foc.exe%APPDATA%\Holmdel8.exe%APPDATA%\Install\laeu.exe%APPDATA%\Irenas.exe%APPDATA%\Javaw\Javaw.exe%APPDATA%\Machree[RANDOM CHARACTERS].exe%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\filename.exe%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\firewall.vbe%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\Holmdel8.vbe%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\Legit Program.exe%APPDATA%\Mozila\Mozila.exe%APPDATA%\newremcos.exe%APPDATA%\remcos.exe%APPDATA%\SearchUI.exe%APPDATA%\Smartse\smartse.exe%AppData%\spoolsv.exe%APPDATA%\System\logs.dat%APPDATA%\Tornlst.exe%APPDATA%\WindowsDefender\WindowsDefender.exe%PROGRAMFILES%\AppData\drivers.exe%TEMP%\Name of the melted file.exe%WINDIR%\System32\remcomsvc.exe%WINDIR%\SysWOW64\remcomsvc.exeHKEY..\..\..\..{RegistryKeys}SOFTWARE\Microsoft\Windows\CurrentVersion\Run\remcosSOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\remcos

Additional Information

The following directories were created:
%ALLUSERSPROFILE%\task manager%APPDATA%\Badlion%APPDATA%\Extress%APPDATA%\GoogleChrome%APPDATA%\JagexLIVE%APPDATA%\Remc%APPDATA%\Shockwave%APPDATA%\appdata%APPDATA%\googlecrome%APPDATA%\hyerr%APPDATA%\loader%APPDATA%\pdf%APPDATA%\remcoco%APPDATA%\ujmcos%APPDATA%\verify%APPDATA%\windir%AppData%\remcos%PROGRAMFILES(x86)%\Microsft Word%TEMP%\commonafoldersz%TEMP%\remcos%Userprofile%\remcos%WINDIR%\SysWOW64\Adobe Inc%WINDIR%\SysWOW64\remcos%WINDIR%\SysWOW64\skype%WINDIR%\System32\rel%WINDIR%\System32\remcos%WINDIR%\notepad++%WINDIR%\remcos
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