What is DEFCON?

DEFCON is software application developed by Introversion Software. It is most commonly found on computers running Windows 7 with nearly 61.37% of installations running this operating system. DEFCON's installer is typically 58.00 MB in size and installs around 39 files.

DEFCON is most popular in the United States with 59.04% of installations residing in this country.

DEFCON adds 3 scheduled tasks to the Windows Task Scheduler launching the program at randomly scheduled times. When using a computer that is connected to the internet, DEFCON is known to create 3 firewall exceptions to allow inbound and outbound connectivity.

Software Behaviors

Firewall:
  • Steam.exe is added as a firewall exception for 'C:\Program Files\Steam\Steam.exe'.
  • SteamTmp.exe is added as a firewall exception for 'C:\Program Files\Steam\Steam.exe'.
  • defcon.exe is added as a firewall exception for 'C:\Program Files\Steam\steamapps\common\defcon\defcon.exe'.
Scheduled tasks:
  • Defcon.exe is scheduled as a task with the class '{70D7DEB5-D992-4E47-865A-F1D209343102}' (runs on registration).
  • Steam.exe is scheduled as a task with the class '{CC29CBDA-1EA3-44CC-882F-AFADB7D351AB}' (runs on registration).
  • SteamTmp.exe is scheduled as a task with the class '{E7D265B4-59BF-47D6-AE89-982082F40E03}' (runs on registration).

Startup Entries

Startup tasks:
  • Steam.exe is automatically launched at startup through a scheduled task named Steam Login.
Registry entries:
  • Steam.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'Steam' and executes as "C:\Program Files\Steam\steam.exe" -silent.
  • SteamTmp.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'Steam' and executes as "C:\Program Files\Steam\Steam.exe" -silent.

Software Details

URL:
https://www.introversion.co.uk/defcon
Support:
https://support.steampowered.com
Installation path:
C:\Program Files\Steam\steamapps\common\Defcon
Uninstaller:
"C:\Program Files\Steam\steam.exe" steaC://uninstall/1520
Size:
58.00 MB
Language:
English

DEFCON Executable Details

Primary executable:
defcon.exe
Name:
DEFCON
Path:
C:\Program Files\Steam\steamapps\common\Defcon\defcon.exe
MD5:
17d75cba1efaa17394f3d814fa510bb5
SHA-1:
SHA-256:
Files installed by DEFCON
File Type Filename MD5
DLL
d606cc4c46e054c97c2ad8afa6b0e2c7
DLL
ac8652aa210ef8c23e3678ce59092648
EXE
aced44d094548ce6929595c63b1c7ec1
DLL
97ea5352ea1a81702daafe58deca4066
DLL
20205638ae9071692b4b8f81abffc23d
DLL
0b72b0692fca4e69b1e0f398e7b8f830
DLL
c2d7f7f5e3a8a23a08fb147e5388ef25
DLL
77facfd1580d66d5de505c060f916e59
DLL
001e8872800327de9d3cf922f42e4d79
EXE
0fc1a4867eee845b01588841e62c1b72