Sınıf: Backdoor
Arka kapılar, kötü niyetli kullanıcıların virüslü bir bilgisayar üzerinde uzaktan denetimini sağlamak için tasarlanmıştır. İşlevsel açıdan, Backdoors, yazılım geliştiricileri tarafından tasarlanan ve dağıtılan birçok yönetim sistemine benzer. Bu tür kötü amaçlı programlar, yazarın virüslü bilgisayarda istediği herhangi bir şeyi yapmasını sağlar: dosya gönderme ve alma, dosyaları başlatma veya silme, mesajları görüntüleme, verileri silme, bilgisayarı yeniden başlatma vb. Bu kategorideki programlar sıklıkla kullanılır. Bir grup kurban bilgisayarını birleştirmek ve bir botnet veya zombi ağı oluşturmak için. Bu, kötü niyetli kullanıcılara, daha sonra, suçlu amaçlar için kullanılabilecek bir virüslü bilgisayar ordusu üzerinde merkezi kontrol sağlar. Ağlar üzerinden yayılabilen ve diğer bilgisayarları Net-Worms gibi etkileyebilen bir Back of grubu da var. Aradaki fark, bu Arka Planların otomatik olarak (Net-Solucanlar yaptığı gibi) yayılmamasıdır, ancak onları kontrol eden kötü niyetli kullanıcının özel bir “komutu” üzerinedir.Platform: Win32
Win32, 32-bit uygulamaların yürütülmesini destekleyen Windows NT tabanlı işletim sistemlerinde (Windows XP, Windows 7, vb.) Bir API'dir. Dünyanın en yaygın programlama platformlarından biri.Aile: Backdoor.Win32.Koutodoor
No family descriptionExamples
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Tactics and Techniques: Mitre*
TA0005
Defense Evasion
The adversary is trying to avoid being detected.
Defense Evasion consists of techniques that adversaries use to avoid detection throughout their compromise. Techniques used for defense evasion include uninstalling/disabling security software or obfuscating/encrypting data and scripts. Adversaries also leverage and abuse trusted processes to hide and masquerade their malware. Other tactics’ techniques are cross-listed here when those techniques include the added benefit of subverting defenses.
Defense Evasion consists of techniques that adversaries use to avoid detection throughout their compromise. Techniques used for defense evasion include uninstalling/disabling security software or obfuscating/encrypting data and scripts. Adversaries also leverage and abuse trusted processes to hide and masquerade their malware. Other tactics’ techniques are cross-listed here when those techniques include the added benefit of subverting defenses.
T1218.010
System Binary Proxy Execution: Regsvr32
Adversaries may abuse Regsvr32.exe to proxy execution of malicious code. Regsvr32.exe is a command-line program used to register and unregister object linking and embedding controls, including dynamic link libraries (DLLs), on Windows systems. The Regsvr32.exe binary may also be signed by Microsoft. (Citation: Microsoft Regsvr32)
Malicious usage of Regsvr32.exe may avoid triggering security tools that may not monitor execution of, and modules loaded by, the regsvr32.exe process because of allowlists or false positives from Windows using regsvr32.exe for normal operations. Regsvr32.exe can also be used to specifically bypass application control using functionality to load COM scriptlets to execute DLLs under user permissions. Since Regsvr32.exe is network and proxy aware, the scripts can be loaded by passing a uniform resource locator (URL) to file on an external Web server as an argument during invocation. This method makes no changes to the Registry as the COM object is not actually registered, only executed. (Citation: LOLBAS Regsvr32) This variation of the technique is often referred to as a "Squiblydoo" and has been used in campaigns targeting governments. (Citation: Carbon Black Squiblydoo Apr 2016) (Citation: FireEye Regsvr32 Targeting Mongolian Gov)
Regsvr32.exe can also be leveraged to register a COM Object used to establish persistence via Component Object Model Hijacking. (Citation: Carbon Black Squiblydoo Apr 2016)
Malicious usage of Regsvr32.exe may avoid triggering security tools that may not monitor execution of, and modules loaded by, the regsvr32.exe process because of allowlists or false positives from Windows using regsvr32.exe for normal operations. Regsvr32.exe can also be used to specifically bypass application control using functionality to load COM scriptlets to execute DLLs under user permissions. Since Regsvr32.exe is network and proxy aware, the scripts can be loaded by passing a uniform resource locator (URL) to file on an external Web server as an argument during invocation. This method makes no changes to the Registry as the COM object is not actually registered, only executed. (Citation: LOLBAS Regsvr32) This variation of the technique is often referred to as a "Squiblydoo" and has been used in campaigns targeting governments. (Citation: Carbon Black Squiblydoo Apr 2016) (Citation: FireEye Regsvr32 Targeting Mongolian Gov)
Regsvr32.exe can also be leveraged to register a COM Object used to establish persistence via Component Object Model Hijacking. (Citation: Carbon Black Squiblydoo Apr 2016)
* © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.