PC Pitstop Libraries > Process Library > rundll32.exe
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What is rundll32.exe? (Various)

Vendor:      Microsoft Corporation
Product:     Microsoft
Vendor Website:      http://support.microsoft.com/kb/q164787/
Last Seen by PC Pitstop:      No Data

Process is Bad PC Pitstop has analyzed this process and determined that there is a high likelihood that it is bad.
Process is questionablePC Pitstop has analyzed this process and determined that the safety of this process is questionable.
Process is goodPC Pitstop has analyzed this process and determined that there is a high likelihood that it is good.
Process is goodThis process is a Microsoft or Windows process, but many viruses use this file name to escape notice.

PC Pitstop Analysis

Purpose: RUNDLL32.EXE is a program that can be used to call program code inside 32-bit DLLs. Because it can be used to run code in any DLL, we don't know exactly what your particular RUNDLL32 is doing. It's worth investigating further to determine what this program is doing. For more information on RUNDLL32, see Microsoft document http://support.microsoft.com/kb/q164787/

rundll32.exe is an essential part of Windows and required for Windows to work properly. It should never be disabled.

PC Pitstop recommends WinPatrol Plus for monitoring all of the background activity on your PC. WinPatrol Plus provides an easy to understand descriptions of over 15,000 processes and programs.


rundll32.exe is known to be a bad process. Start this Free scan to check your other threats to your PCs security, like this file.
rundll32.exe could be a harmful process. Start this Free Scan to check for threats to your PC Security.
This information brought to you by PC Matic SuperShield. Start this Free scan to check your threats to your PCs security.
rundll32.exe is a Microsoft or Windows process but some versions of this exe carry viruses.
Check your PC for the bad versions of this file - with this
Free Security Scan.

rundll32.exe Technical Information

Percentage of recently scanned PC's with this process running: 9.71%
Average CPU use for this program: 0%
Average RAM for this program: 5 MB

MD5 Hash Analysis

Program Name MD5 Count
rundll32.exe

MD5 Hashes Expand md5 List Collapse md5 List
# Status MD5 File Info Last Seen Signed Day Week Month Threat info
1 Status 0x5e324d7cc04989dbb90de036f33a89fc More File Information 6/15/2013 Unsigned 1 6 38 Not Applicable
2 Status 0xefa551863ad71a69690a3685145fd378 More File Information 6/15/2013 Unsigned 17 17 40 Not Applicable
3 Status 0xda285490bbd8a1d0ce6623577d5ba1ff More File Information 6/15/2013 Unsigned 809 5012 19880 Not Applicable
4 Status 0x3735fdf6a39071851e08f70b0b2aa156 More File Information 6/15/2013 Unsigned 38 221 1394 Not Applicable
5 Status 0xe715412e47d20eb0ebf77b65f9157343 More File Information 6/15/2013 Unsigned 60 424 441 Not Applicable
6 Status 0xb1d2f529dc72f42c73fb0f48c55e7898 More File Information 6/15/2013 Unsigned 4 4 8 Not Applicable
7 Status 0x75139c5e6b968e39a5a35e7003fa7049 More File Information 6/15/2013 Unsigned 7 226 1007 Not Applicable
8 Status 0x2b25c656bb1af9e65aa6729fe32c3ff8 More File Information 6/15/2013 Unsigned 26 354 1032 Not Applicable
9 Status 0x6bc7b9fec61e013f81fbcc20802f50bf More File Information 6/15/2013 Unsigned 395 3561 15027 Not Applicable
10 Status 0x7903854a31929d9e9c94a00656958763 More File Information 6/15/2013 Unsigned 1 65 235 Not Applicable
11 Status 0xd51a4b912a90554b580a2401dfab02a5 More File Information 6/15/2013 Unsigned 3 94 417 Not Applicable
12 Status 0x081002d8f4176a10bca3a2f93c4d31c2 More File Information 6/15/2013 Unsigned 6 16 102 Not Applicable
13 Status 0x4b555106290bd117334e9a08761c035a More File Information 6/15/2013 Unsigned 116930 908290 3517926 Not Applicable
14 Status 0xd965cdbc86c674b157c9afa48a45cf34 More File Information 6/15/2013 Unsigned 12 42 313 Not Applicable
15 Status 0x85cbc6b8799f3c215e492c85f50c4ebc More File Information 6/15/2013 Unsigned 11 110 422 Not Applicable
16 Status 0x037b1e7798960e0420003d05bb577ee6 More File Information 6/15/2013 Unsigned 59572 217475 979078 Not Applicable
17 Status 0x51138beea3e2c21ec44d0932c71762a8 More File Information 6/15/2013 Unsigned 150536 1174323 5120460 Not Applicable
18 Status 0x93ad0b78c7357a05f50e594ec7c22300 More File Information 6/15/2013 Unsigned 4 254 540 Not Applicable
19 Status 0xc6deb2ee4c46c4dc725d65836244f3f9 More File Information 6/15/2013 Unsigned 26 60 60 Not Applicable
20 Status 0xc17b43234a61ea6f5d6e52961991c0e3 More File Information 6/15/2013 Unsigned 43 270 745 Not Applicable
21 Status 0x224f6b374852153c8c24bed141ae3a20 More File Information 6/15/2013 Unsigned 23610 169745 757161 Not Applicable
22 Status 0x55a78cab0cce27c6ecf6e0673e2597d8 More File Information 6/15/2013 Unsigned 22 22 53 Not Applicable
23 Status 0x5bc57445124544e1b670f465ae7b12f6 More File Information 6/15/2013 Unsigned 2 19 31 Not Applicable
24 Status 0x4e95e199cd4702006dbe7bfeea9a4a8a More File Information 6/15/2013 Unsigned 1 9 9 Not Applicable
25 Status 0xf6b34cd47caf6d68106b9f8055f35c50 More File Information 6/14/2013 Unsigned 0 32 241 Not Applicable
26 Status 0x3b5d369692d16dee39b946d00643de51 More File Information 6/14/2013 Unsigned 0 14 39 Not Applicable
27 Status 0xe12130d733b4bf7c96c2b62847481ee3 More File Information 6/14/2013 Unsigned 0 7 8 Not Applicable
28 Status 0xb17657d5fad3c1ec4a594fb2aab67658 More File Information 6/14/2013 Unsigned 0 10 29 Not Applicable
29 Status 0xc8f40d3cafefad317d19a89b15a8e124 More File Information 6/14/2013 Unsigned 0 48 102 Not Applicable
30 Status 0x3175eb8ef1c6c38f440fcb2d1403b823 More File Information 6/14/2013 Unsigned 0 3 59 Not Applicable
31 Status 0x72c09505c858cf38f3a7aa54ae87c65d More File Information 6/14/2013 Unsigned 0 2 3 Not Applicable
32 Status 0x704d3c3adf8823161dfd73a89da4954e More File Information 6/13/2013 Unsigned 0 3 3 Not Applicable
33 Status 0x0fb22dd37c17f80ad71316049f725170 More File Information 6/12/2013 Unsigned 0 3 15 Not Applicable
34 Status 0x1f5789a69ad98f779126e0c297243373 More File Information 6/12/2013 Unsigned 0 12 24 Not Applicable
35 Status 0xad46ed0c5bedcf136baf2d5ccd288bae More File Information 6/8/2013 Unsigned 0 0 3 Not Applicable
36 Status 0xf8621a46ce1acd4e8772f0994cc9bd0e More File Information 6/8/2013 Unsigned 0 0 16 Not Applicable
37 Status 0xe0668814b1b8528defe74a3a09a1ed51 More File Information 6/7/2013 Unsigned 0 0 4 Not Applicable
38 Status 0xe427f758fc84284746d68b177c079cd3 More File Information 6/6/2013 Unsigned 0 0 11 Not Applicable
39 Status 0x208c3f7142c109f3055cb07c95af0f2e More File Information 6/4/2013 Unsigned 0 0 2 Not Applicable
40 Status 0x10ba964a3cfe7a07dbde0f60ffb6f2a7 More File Information 6/3/2013 Unsigned 0 0 1 Not Applicable
41 Status 0x70e61cfe6c4e35c9d28739086ae414ac More File Information 6/1/2013 Unsigned 0 0 1 Not Applicable
42 Status 0x7a099173b61addd981999b9799d0b45b More File Information 5/30/2013 Unsigned 0 0 1 Not Applicable
43 Status 0xbe3a34738d3426ed2b4d7f5ff6fb77e1 More File Information 5/30/2013 Unsigned 0 0 19 Not Applicable
44 Status 0xf8dda0c58b97268e8dac90c5f4c685af More File Information 5/26/2013 Unsigned 0 0 2 Not Applicable
45 Status 0x3e68fa578a569171d6cf861dc991b431 More File Information 5/26/2013 Unsigned 0 0 1 Not Applicable
46 Status 0x442118a7565f7391cd88a17a88f7fdc5 More File Information 5/24/2013 Unsigned 0 0 55 Not Applicable
47 Status 0x10446646d128e580c46615338e74e672 More File Information 5/20/2013 Unsigned 0 0 6 Not Applicable
48 Status 0xd8829ecf755c8b31af078acf7c8b2763 More File Information 5/20/2013 Unsigned 0 0 1 Not Applicable
49 Status 0xb6e62f99008c4e5065da6c8ad3888f40 More File Information 5/19/2013 Unsigned 0 0 10 Not Applicable
50 Status 0x2269694e1c3972f91cc4301f725bd76e More File Information 5/18/2013 Unsigned 0 0 1 Not Applicable
51 Status 0x5b1154cea851b31f1feb0f10204f7969 More File Information 5/11/2013 Unsigned 0 0 0 Not Applicable
52 Status 0x044458434c3602dcea0922019bf34a94 More File Information 5/11/2013 Unsigned 0 0 0 Not Applicable
53 Status 0xce15584a7560fa3f0389a6f63c51bd9c More File Information 5/10/2013 Unsigned 0 0 0 Not Applicable
54 Status 0xe6174dc83e3dc3e29c9fc3bae0005558 More File Information 5/9/2013 Unsigned 0 0 0 Trojan.Win32.Generic.pak!cobra
55 Status 0xba2762420d3f8281919ad1c3ba4fb9cd More File Information 5/7/2013 Unsigned 0 0 0 Not Applicable
56 Status 0x1b3d8375d1e96ca29e3b867b69168bae More File Information 5/6/2013 Unsigned 0 0 0 Not Applicable
57 Status 0xd7b5b096a2530bf2c984e19fcb4dd1fd More File Information 5/5/2013 Unsigned 0 0 0 Not Applicable
58 Status 0x730ead05b1fc178629f437f8a1d76e27 More File Information 5/2/2013 Unsigned 0 0 0 Not Applicable
59 Status 0xbae08e361938438ce333ac92681e385c More File Information 5/2/2013 Unsigned 0 0 0 Not Applicable
60 Status 0xab429f464bbcdb3d6c4e792fcd971842 More File Information 4/30/2013 Unsigned 0 0 0 Not Applicable
61 Status 0xf17677602630e3f2f0aeeaf3ea4b1b84 More File Information 4/25/2013 Unsigned 0 0 0 Not Applicable
62 Status 0x9a5f7e97c369e91b712795f30f60cd44 More File Information 4/25/2013 Unsigned 0 0 0 Not Applicable
63 Status 0xa80697f46c055f2e8a45736d6edc9736 More File Information 4/22/2013 Unsigned 0 0 0 Not Applicable
64 Status 0x57bc5afe2f21612a8b0c4eecc95b1b71 More File Information 4/22/2013 Unsigned 0 0 0 Not Applicable
65 Status 0x82ccd98cd8345f1aeac72d7b581b2f76 More File Information 4/18/2013 Unsigned 0 0 0 Not Applicable
66 Status 0xba39e18f4e5af6f1d612810c87b68bf0 More File Information 4/12/2013 Unsigned 0 0 0 Not Applicable
67 Status 0xf88cdb0ccc416b3778736be74cdebb94 More File Information 4/11/2013 Unsigned 0 0 0 Not Applicable
68 Status 0xa6cab4055600ad39982183486c2f9293 More File Information 4/11/2013 Unsigned 0 0 0 Not Applicable
69 Status 0xdd81d91ff3b0763c392422865c9ac12e More File Information 4/9/2013 Unsigned 0 0 0 Not Applicable
70 Status 0x09ceb1b1ff2db24cf651aa2efdd09e86 More File Information 4/9/2013 Unsigned 0 0 0 Not Applicable
71 Status 0x354b9eeabdaf7fb0ab244c291b5a52d7 More File Information 4/2/2013 Unsigned 0 0 0 Not Applicable
72 Status 0xcf5ddcdf7c7d3baa5e8273886c4eda88 More File Information 3/19/2013 Unsigned 0 0 0 Not Applicable
73 Status 0xbdccf6518dda64ece59b9f53d0a35add More File Information 3/17/2013 Unsigned 0 0 0 Not Applicable
74 Status 0xc08c75d233a5b1944e3dea08bb8a6d6f More File Information 3/12/2013 Unsigned 0 0 0 Not Applicable
75 Status 0x08f7e5bb1730cb0c19ac2505470fd2c8 More File Information 3/2/2013 Unsigned 0 0 0 Not Applicable
76 Status 0x5763e6224286473b771b234476c6538c More File Information 2/23/2013 Unsigned 0 0 0 Not Applicable
77 Status 0xd03e0bff09aa96ac9069d09ac352bf82 More File Information 2/19/2013 Unsigned 0 0 0 Not Applicable
78 Status 0x16c68603123832bfd177b8334e9d9cb2 More File Information 2/17/2013 Unsigned 0 0 0 Not Applicable
79 Status 0xebba3b60186cb8a43dd77a4347b556f6 More File Information 2/7/2013 Unsigned 0 0 0 Not Applicable
80 Status 0xfbc764d0b347c71eb599bc08608d8775 More File Information 1/26/2013 Unsigned 0 0 0 Not Applicable
81 Status 0x15e78532b76879f7e72bc8fa1503dc88 More File Information 1/22/2013 Unsigned 0 0 0 Not Applicable
82 Status 0x095b07a96a380ea300b24dce9915d1f8 More File Information 1/18/2013 Unsigned 0 0 0 Not Applicable
83 Status 0x041bf536aa7cc74a3deac106390bc782 More File Information 1/17/2013 Unsigned 0 0 0 Not Applicable
84 Status 0x92a033ab3efc0bab04616de49e57768f More File Information 1/9/2013 Unsigned 0 0 0 Not Applicable
85 Status 0xdab28b1c83fef7f968b04a54797c03bb More File Information 12/28/2012 Unsigned 0 0 0 Not Applicable
86 Status 0x313d2f141623266e67ff64908f54b145 More File Information 12/28/2012 Unsigned 0 0 0 Not Applicable
87 Status 0x945ffa3d1de4e1254054760f3e26f05b More File Information 12/17/2012 Unsigned 0 0 0 Not Applicable
88 Status 0x22a3526efa4f5c96cb2ca1c19e72c92a More File Information 12/16/2012 Unsigned 0 0 0 Not Applicable
89 Status 0x862048f25ef882fcf225b6277408ed87 More File Information 12/16/2012 Unsigned 0 0 0 Not Applicable
90 Status 0xcf7a11746f40d98cc3072e0b717d0d58 More File Information 12/14/2012 Unsigned 0 0 0 Not Applicable
91 Status 0x5ee3e134fc5d41d3416d4443cd7dbbdf More File Information 12/8/2012 Unsigned 0 0 0 Not Applicable
92 Status 0xb71f3122c955535839d0dfc1b853e8fe More File Information 12/6/2012 Unsigned 0 0 0 Not Applicable
93 Status 0xd04fcaf460cd08bca2b64623bd3fb023 More File Information 11/15/2012 Unsigned 0 0 0 Trojan.Win32.Generic!BT
94 Status 0xdf0a316b081cbeb4571f0d956d2bac80 More File Information 11/10/2012 Unsigned 0 0 0 Not Applicable
95 Status 0x6737b1b4d0591c980cff12e1a448cb30 More File Information 11/8/2012 Unsigned 0 0 0 Not Applicable
96 Status 0x66abe9fd936cc197e5b155087b40d29c More File Information 10/29/2012 Unsigned 0 0 0 Not Applicable
97 Status 0x491cb2b3c444e9d2324c390f7acc4b2c More File Information 10/10/2012 Unsigned 0 0 0 Not Applicable
98 Status 0xcedfe0b8fdd42c735af26549963da480 More File Information 10/8/2012 Unsigned 0 0 0 Not Applicable
99 Status 0x515184325f162efc493a7376b6cadb36 More File Information 10/8/2012 Unsigned 0 0 0 Not Applicable
100 Status 0xcdd7140c0eaa754c527b983ccc9993cd More File Information 8/26/2012 Unsigned 0 0 0 Not Applicable
MD5 Hashes Expand md5 List Collapse md5 List
# Status MD5 Last Seen File Date Revision Common Name Size
1 Status 0x1fd79b9ac99491c478e76861eae1106a 2/27/2013 3:19:00 AM Unknown Unknown (Various) 39 KB
2 Status 0x71194979e075fbc549d01004ca17b03a 12/18/2012 6:32:00 AM Unknown Unknown (Various) 108 KB
3 Status 0x4f6ed0f48d4091b11bf0e09d2fe81196 7/11/2012 8:19:00 PM Unknown Unknown (Various) 100 KB
4 Status 0x08a8d420c4300a669898ef0c112c6780 3/4/2012 12:44:00 AM Unknown Unknown (Various) 52 KB
5 Status 0x6587e024f4652318730593405baee9b1 3/2/2012 3:53:00 AM Unknown Unknown (Various) 38 KB
6 Status 0xd965cdbc86c674b157c9afa48a45cf34 2/29/2012 12:16:00 PM Unknown Unknown (Various) 46 KB
7 Status 0x51138beea3e2c21ec44d0932c71762a8 2/8/2012 5:00:00 AM Unknown Unknown (Various) 43 KB
8 Status 0x037b1e7798960e0420003d05bb577ee6 2/8/2012 4:39:00 AM Unknown Unknown (Various) 32 KB
9 Status 0x4b555106290bd117334e9a08761c035a 2/8/2012 12:42:00 AM Unknown 6.0.6000.16386 (vista_rtm.061101-2205) RUNDLL 43 KB
10 Status 0x93ad0b78c7357a05f50e594ec7c22300 2/7/2012 9:55:00 PM Unknown Unknown (Various) 33 KB
11 Status 0xda285490bbd8a1d0ce6623577d5ba1ff 2/7/2012 9:33:00 PM Unknown 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) RUNDLL 32 KB
12 Status 0xe715412e47d20eb0ebf77b65f9157343 2/7/2012 2:17:00 PM Unknown Unknown (Various) 32 KB
13 Status 0xd51a4b912a90554b580a2401dfab02a5 2/7/2012 4:26:00 AM Unknown Unknown (Various) 32 KB
14 Status 0x75139c5e6b968e39a5a35e7003fa7049 2/7/2012 2:34:00 AM Unknown 5.2.3790.1830 (srv03_sp1_rtm.050324-1447) RUNDLL 34 KB
15 Status 0xc17b43234a61ea6f5d6e52961991c0e3 2/6/2012 6:17:00 PM Unknown Unknown (Various) 32 KB
16 Status 0x85cbc6b8799f3c215e492c85f50c4ebc 2/6/2012 3:06:00 PM Unknown Unknown (Various) 33 KB
17 Status 0xe12130d733b4bf7c96c2b62847481ee3 2/5/2012 11:37:00 PM Unknown Unknown (Various) 32 KB
18 Status 0x0fb22dd37c17f80ad71316049f725170 2/5/2012 7:55:00 PM Unknown 5.1.2600.0 (xpclient.010817-1148) RUNDLL 31 KB
19 Status 0xc6deb2ee4c46c4dc725d65836244f3f9 2/3/2012 9:33:00 PM Unknown Unknown (Various) 32 KB
20 Status 0xb1d2f529dc72f42c73fb0f48c55e7898 1/31/2012 1:05:00 PM Unknown Unknown (Various) 32 KB
21 Status 0xdab28b1c83fef7f968b04a54797c03bb 1/31/2012 4:08:00 AM Unknown 5.1.2600.3244 (xpsp.071030-1535) RUNDLL 32 KB
22 Status 0x3735fdf6a39071851e08f70b0b2aa156 1/28/2012 9:56:00 PM Unknown Unknown (Various) 32 KB
23 Status 0xf5402cd47b7389ddc21f92119a906eee 1/23/2012 9:16:00 PM Unknown 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) RUNDLL 33 KB
24 Status 0x081002d8f4176a10bca3a2f93c4d31c2 1/23/2012 3:35:00 PM Unknown 5.1.2600.3311 (xpsp.080212-0004) RUNDLL 32 KB
25 Status 0x730ead05b1fc178629f437f8a1d76e27 1/22/2012 10:31:00 PM Unknown 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) RUNDLL 32 KB



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Important Note

A file name alone may not be enough for positive identification. PC Pitstop's Overdrive tests and spyware scan use information such as the company name, product name, or install directory.

If you are unable to identify a file, ask about it in our forums after running our full tests.