Below is an MDB signature I prepared from a file I received attached to email purporting to be from someone in Qatar wanting to do business with me. Looks like they are targeting small business. On the chance that ClamWin may be on someone's small business computer, I'm posting the sig here. The file was supposed to be Gzipped, but it turned out that it had been zipped as a RAR file, a common format used by malware. Evidently this is malware from a dummy.

Copy the MDB signature(s) to a Notepad file and save it in the ClamWin db program data folder, or add the signature to an existing MDB file if you already have one there. Do not save the file with a .txt or .text extension on the end of the name. Save the file as Sigfile.mdb. Select file type All Files to prevent .txt or .text from being used at the end of the filename. ClamWin is unable to recognize a text file as a signature and will give a corrupt database warning. After saving the file to the ClamWin db program folder, scan something with ClamWin to make sure the signature works--delete the signature file if it does not, or remove the signature from an existing MDB file if you put it there and save the file as it was.

MDB signatures are signatures for a section of a malware file. They can sometimes last up to a month, especially if the section is re-used in other malware. I delete my MDB signatures two weeks after the end of the month in which they were prepared. The last section of each signature tells the month/date/time the signature was prepared (092321.1203 is Sept. 23 2021 at 1203 pm).

591872:29f32141265e5ba91fc742a7a0cfff05:Win.Trojan.Tesla-092321.1203

Regards,