In this article I will give you tips with easy steps to turn off bp code calc.exe process, and then I will show you how to block bp code calc.exe from running in your computer. and completely remove this file from your PC.
This script executes 2 different kind of eval() calls. The first, contains a string to execute directly (calc.exe execution); the second contains a command used to generate the code to execute (notepad.exe execution encoded with base64).
BP Code Calc exe
The COMcheck software product group makes it easy for architects, builders, designers, and contractors to determine whether new commercial or high-rise residential buildings, additions, and alterations meet the requirements of the IECC and ASHRAE Standard 90.1, as well as several state-specific codes. COMcheck also simplifies compliance for building officials, plan checkers, and inspectors by allowing them to quickly determine if a building project meets the code.
The U.S. Department of Energy (DOE) is directed to provide technical assistance to states to support the implementation of model residential and commercial building energy codes (42 USC 6833). As part of this assistance, the DOE Building Energy Codes Program provides ongoing support for REScheck and COMcheck compliance software, which are updated based on new editions of the model codes. DOE has published guidance surrounding its support for the software, including technical assistance requests for modified versions.
A payload consists of code that will run on the remote system. In Metasploit, a payload is a special module that can be used to work with an exploit module that will take advantage of a vulnerability in the system. In short: an exploit module will access the system, a payload module defines what will be done on that machine after the system was successfully accessed.
Singles are payloads that are self-contained and completely standalone. These can be as simple as running calc.exe, adding a user to the system or deleting a file. Since single payloads are self-contained, they can be caught with non-metasploit handlers like netcat for example.
Create a screenshot from the victim's desktop and store it to our system by using the screenshot command. In the following example calc.exe will be executed as a setup for taking a screenshot as a followup-command:
Each OS has its subtleties, it is legitimate to wonder what would have changed if we had chosen Windows 10. In the idea, in fact, not much. We still have opcodes and we will always call kernel functions, but the way of doing things will change a little bit.
To create a shellcode in Windows 10, we will first write what we want to do in C, then go through the assembly and finally get the opcodes. The difference between Windows and Linux comes from using dlls, not system calls.
As with our shellcode on Linux, I am not going to do a real shellcode but run a witness payload. If you can do that, you will be able to do some real loads. And in the Windows world, the indicator is often the calculator.
While it's entirely possible to write directly in assembler if you want, personally I prefer to write some code in C first, which will serve as my target. This piece of code will define exactly what I want my shellcode to do.
We are therefore going to call the LoadLibraryA () and GetProcAddress () functions in order to load the ShellExecuteA () function located in shell32.dll, then call it in order to launch calc.exe. We will then cleanly terminate the processor via a call to ExitProcess ().
LoadLibraryA allows you to load a DLL. GetProcAddress allows you to retrieve the address of a function in a DLL.We choose to launch the ShellExecuteA function, located in the DLL shell32.dll. This function is used to launch an executable, in our case, the calc.exe calculator.
Actually, we should get the addresses of the functions directly via the shellcode, but as it is quite tedious, we will keep it as simple as possible for now, because the goal here is to understand how to make a shellcode under Windows, and to do this kind of manipulation would confuse things for nothing.
It works because on Windows, Kernel32.dll is always loaded in the same place. The address of functions therefore depends only on the layout of kernel32 (and other small subtleties from one version to another). Our shellcode will therefore only work on the version of Windows on which it was made.
It is not necessarily easy to store strings and retrieve their addresses in a shellcode. There are different possible techniques, but the one we'll use for our shellcode is taken from Aleph One's legendary article: Smashing the Stack for Fun and Profit (Phrack 49 0x0e).
Although MASM is installed with Visual Studio by default, it is not possible to create a MASM project through the project creation interface. However, we just need a MASM project to compile and test our code.
The end-of-string 0 is more problematic. The method we are going to use is to add an unnecessary character at the end of the string (for example "Shell32.dllX"), then replace it with a 0. Obviously, this 0 will be calculated with an xor ...
Before we can test our new version of the shellcode, we need to tell the linker that we need a editable code segment, otherwise it will be impossible to use the previous technique to modify our string number of characters and replace the 0.
You can use the same tricks to defeatblacklist approaches such as when the PowerShell is restricted, an attackercalls the power^shell.exe to bypassrestrictions, or the calc is restricted.
TAXING UNIT ONLYThe second general class of adjustments are those that affect the taxing unit only. These adjustments do not affect the applicant's exemption, only the amount of reimbursement due a taxing unit. Subsection 101.02, paragraphs 1, 2, and 3 are the causes for this type of adjustment.1. No application received Subsection 101.02, paragraph 1This applies to the procedure of sending the applications to the Tax Commission office. According to the statute, an application must be in the Tax Commission office by June 1 or the request for reimbursement is to be denied. If, when examining the supplemental roll, no application can be found for a name that is listed, the request for reimbursement of that missing applicant will be rejected.2. Error in supplemental roll Subsection 101.02, paragraph 2This applies to errors made in the count of the number of applicants on the supplemental roll. If, upon examination, an error in the count of applicants on the supplemental roll is found, an adjustment shall be made to correct the amount of reimbursement equal to the difference in the count.3. Error in Reimbursement request Subsection 101.02, paragraph 3When a municipality has requested reimbursement for an applicant that exceeds the two hundred dollar ($200) limit per applicant, this charge will be made to the municipality. This adjustment does not affect the applicant's exemption, but will reduce the reimbursement to the municipality. This code applies to municipalities only.
Everything changes for Windows 7. The Calculator in Windows 7 introduced two new modes: Programmer, which is the subject of this blog post, and Statistics. There are also special modes for unit conversion and date calculation. Here is how you select the mode:
Primer3 picks primers for PCR reactions, considering as criteria:o oligonucleotide melting temperature, size, GC content, and primer-dimer possibilities,o PCR product size,o positional constraints within the source (template) sequence, ando possibilities for ectopic priming (amplifying the wrong sequence)o many other constraints.All of these criteria are user-specifiable as constraints, andsome are specifiable as terms in an objective function thatcharacterizes an optimal primer pair.3. CITING PRIMER3We request but do not require that use of this software be cited inpublications as* Untergasser A, Cutcutache I, Koressaar T, Ye J, Faircloth BC, Remm M and Rozen SG.Primer3--new capabilities and interfaces.Nucleic Acids Res. 2012 Aug 1;40(15):e115.The paper is available at and * Koressaar T and Remm M.Enhancements and modifications of primer design program Primer3.Bioinformatics 2007;23(10):1289-1291.The paper is available at If you use masker function, please cite:* Koressaar T, Lepamets M, Kaplinski L, Raime K, Andreson R and Remm M.Primer3_masker: integrating masking of template sequence with primer design software.Bioinformatics 2018;34(11):1937-1938.The paper is available at Source code available at -org/primer3.
The development of Primer3 is promoted by a small group ofenthusiastic scientists mainly in their free time.They do not gainany financial profit with Primer3.There are two groups of Primer3 users: end users, who runPrimer3 to pick their primers and programmers, who use Primer3in their scripts or software packages. We encourage both to usePrimer3.If you are an end user, we request but do notrequire that use of this software be cited in publicationsas listed above under CITING PRIMER3.If you are a programmer, you will see that Primer3 is nowdistributed under the GNU General Public License, version 2 or(at your option) any later version of the License (GPL2).As we understand it, if you include parts of the Primer3 sourcecode in your source code or link to Primer3 binary libraries inyour executable, you have to release your software also underGPL2. If you only call Primer3 from your software and interpretits output, you can use any license you want for your software.If you modify Primer3 and then release your modified software,you have to release your modifications in source code underGPL2 as well.We chose GPL2 because we wanted Primer3 to evolve and for theimprovements to find their way back into the main distribution.If you are programming a new web interface which runs Primer3,please include in the about page of the tool the sentence" uses Primer3 version ...".Please consider releasing your software under GPL2 as well,especially if you do not want to maintain it in the future.There is no need to ask us for permission to include Primer3in your tools. 2ff7e9595c
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