I came here in search with the same problem.
in Windows 8.1, the date in ISO 8601 format (YYYY-MM-DDThh:mm:ss) didn't work for me if I added Thh:mm:ss to the date. Date without time was ok. '2014-1-15'
But this did work with time: 15-Jan-14 16:24
You might need to use your regional format e.g. 01/15/14 4:24pm or universal: 2014-1-15 16:24
Instead of searching for the modification time, I would suggest you to look for files CREATED on that date and time. As files has created/modified/accessed dates:
System.DateCreated:15-Jan-14 16:24
It's also working without "System." for me: DateCreated:15-Jan-14 16:24
Also, in our case, it's good idea to make your search broader, like 10 minutes period:
DateCreated:15-Jan-14 16:24..15-Jan-14 16:34
or with date in language independent format:
DateCreated:2014-1-15 16:24..2014-1-15 16:34
you are entering this string in the File Explorer window in root directory on your main drive (c:) to a Search This PC combo box right of the address text box.
Also you need to include System Files in search because I think AppData folder is outside indexed space and will not be searched otherwise. And that's where viruses like to reside.
To do this click on Search in Menu, then Advanced Options and System Files ON
In the result pane, you'll see MODIFICATION dates, some out of range you specified. If you will look at the property of each file, you'll see creation date is in specified range. They have been modified after they were created
(I made a picture but can't post it)
2You could use an antivirus... – BenjiWiebe – 2013-01-15T21:14:57.493
I am using Windows Defender (Security Essentials in Windows 8) + Malwarebytes. MalwareBytes only identified one file, and neither has an option to search. – msbg – 2013-01-15T21:16:58.400
Maybe that is all there is that is infected. It is possible that the virus was one file that had not done anything yet. Maybe was waiting for commands from a hacker. ;) – BenjiWiebe – 2013-01-15T21:17:58.380
1True, but I'd rather be certain. There could well be another file ready to reinstall the virus in a few weeks. – msbg – 2013-01-15T21:19:53.247
1A program such as the one I described could also come in handy in other circumstances – msbg – 2013-01-15T21:20:34.760
If it tries to install another one, Windows Defender should stop it. Not sure why it didn't stop the first one. Maybe you should install avast! Free Antivirus. – BenjiWiebe – 2013-01-15T21:21:54.697
Avast is mediocre in my opinion. I uploaded the file to VirusTotal.com and avast failed to detect anything, although Kaspersky, MalwareBytes, and Fortinet did. https://www.virustotal.com/file/6832d8e501179ca68ef929a6e600d34b87f3ff9508a3a0d001f5e8e5c2b2c94d/analysis/1358284056/
– msbg – 2013-01-15T21:25:54.717Avast does really well on our computers. It stops viruses on our computers before they run. – BenjiWiebe – 2013-01-15T21:40:09.617