Tag
#mac
Cerber ransomware looks for and executes DLLs in its current directory. Therefore, we can hijack a DLL, execute our own code, and control and terminate the malware pre-encryption. The exploit DLL checks if the current directory is "C:\Windows\System32" and if not we grab our process ID and terminate. We do not need to rely on hash signatures or third-party products as the malware's flaw does the work for us. Endpoint protection systems and or antivirus can potentially be killed prior to executing malware, but this method cannot as there's nothing to kill as the DLL just lives on disk waiting. From a defensive perspective you can add the DLLs to a specific network share containing important data as a layered approach. All basic tests were conducted successfully in a virtual machine environment.
LockerGoga ransomware looks for and loads a DLL named "wow64log.dll" in Windows\System32. Therefore, we can drop our own DLL to intercept and terminate the malware pre-encryption. Four processes are created. For instance, there is "imtvknqq9737.exe" running under AppData\Local\Temp, the process name is "imtvknqq" plus an appended random number. Our exploit DLL will simply display a Win32API message box and call exit(). The exploit DLL must export "InterlockedExchange" function or it fails with an error. We do not need to rely on hash signature or third-party products as the malware's own flaw will do the work for us. Endpoint protection systems and or antivirus can potentially be killed prior to executing malware, but this method cannot as there's nothing to kill as the DLL just lives on disk waiting. From a defensive perspective, you can add the DLLs to a specific network share containing important data as a layered approach. All basic tests were conducted successfully in a virtual ma...
Cryptowall ransomware looks for and executes DLLs in its current directory. Therefore, we can hijack a DLL, execute our own code, and control and terminate the malware pre-encryption. The exploit DLL checks if the current directory is "C:\Windows\System32" and if not we grab our process ID and terminate. We do not need to rely on hash signatures or third-party products, the malware's flaw does the work for us. Endpoint protection systems and or antivirus can potentially be killed prior to executing malware, but this method cannot as there's nothing to kill as the DLL just lives on disk waiting. From a defensive perspective you can add the DLLs to a specific network share containing important data as a layered approach. All basic tests were conducted successfully in a virtual machine environment.
REvil ransomware looks for and executes DLLs in its current directory. Therefore, we can hijack a DLL, execute our own code, and control and terminate the malware pre-encryption. The exploit DLL checks if the current directory is "C:\Windows\System32" and if not we grab our process ID and terminate. We do not need to rely on hash signatures or third-party products, the malware's flaw does the work for us. Endpoint protection systems and or antivirus can potentially be killed prior to executing malware, but this method cannot as there's nothing to kill as the DLL just lives on disk waiting. From a defensive perspective you can add the DLLs to a specific network share containing important data as a layered approach. All basic tests were conducted successfully in a virtual machine environment.
Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow via the list parameter in the function fromSetIpMacBind. This vulnerability allows attackers to cause a Denial of Service (DoS).
Tenda AX1806 v1.0.0.1 was discovered to contain a heap overflow via the mac parameter in the function GetParentControlInfo. This vulnerability allows attackers to cause a Denial of Service (DoS).
Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow via the wanMTU parameter in the function fromAdvSetMacMtuWan. This vulnerability allows attackers to cause a Denial of Service (DoS).
Tenda AX1806 v1.0.0.1 was discovered to contain a heap overflow via the mac parameter in the function GetParentControlInfo. This vulnerability allows attackers to cause a Denial of Service (DoS).
Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow via the list parameter in the function fromSetIpMacBind. This vulnerability allows attackers to cause a Denial of Service (DoS).
Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow via the wanMTU parameter in the function fromAdvSetMacMtuWan. This vulnerability allows attackers to cause a Denial of Service (DoS).