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ThreatExpert's awareness of the file "tdssl.dll":

Across all ThreatExpert reports, the file "tdssl.dll" was mostly identified as a threat.
File "tdssl.dll" has the following statistics:
Total number of reports analysed611,932
Number of cases that involved the file "tdssl.dll"55
Number of incidents when this file was found to be a threat49
Statistical volume of cases when "tdssl.dll" was a threat89%
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Notes:
  • Please note that the name of the file should NOT be used to define if it is legitimate or not. Such determination can only be made by observing its dynamic behaviour.
  • In order to check a file, please submit it to ThreatExpert.
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The file "tdssl.dll" is known to be created under the following filename:
%System%\tdssl.dll
Note: %System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

The following threats are known to be associated with the file "tdssl.dll":
Threat AliasNumber of Incidents
FakeAlert-AG.gen.a [McAfee]270
TrojanDownloader:Win32/Renos.gen!AQ [Microsoft]234
Mal/EncPk-CZ [Sophos]221
Backdoor.Win32.TDSS.zj [Kaspersky Lab]198
Packed.Generic.188 [Symantec]141
Trojan:Win32/Alureon.gen!N [Microsoft]131
Backdoor.TDSS!sd6 [PC Tools]126
Trojan-Downloader.Win32.Renos.AQ [Ikarus]90
Trojan.TDSServ [PC Tools]75
DNSChanger.gen [McAfee]72
Win-Trojan/Agent.35840.KQ [AhnLab]72
Backdoor.Tidserv [Symantec]60
FakeAlert-SpywareGuard.gen.b [McAfee]59
Trojan:Win32/Alureon.gen!U [Microsoft]59
Trojan-Downloader.Win32.Small.aczp [Kaspersky Lab]45
Mal/EncPk-CZ, Mal/TDSSPack-Q [Sophos]41
Rootkit.Win32.TDSS.bph [Kaspersky Lab]36
Trojan.Fakeavalert [Symantec]36
Trojan:Win32/Sudiet.B [Microsoft]36
Mal/EncPk-EQ [Sophos]32
Trojan-Downloader.Small!sd6 [PC Tools]27
Backdoor.Win32.UltimateDefender.gen [Kaspersky Lab]24
Troj/Meredrop-A [Sophos]18
Trojan-Downloader.Win32.Small [Ikarus]9
Trojan-Downloader.Win32.Small.acrj [Kaspersky Lab]9
Hoax.Win32.Renos.ebd [Kaspersky Lab]6
Trojan.Vundo [Symantec]6
Packed.Win32.Tdss.b [Kaspersky Lab]5
Win-Trojan/Xema.variant [AhnLab]5
Mal/Generic-A [Sophos]3
Rootkit.Win32.Agent.ehv [Kaspersky Lab]3
Trojan.Vundo!sd6 [PC Tools]3
Trojan.Virantix.C [Symantec]1
Trojan:Win32/Vundo.HT [Microsoft]1
Trojan-Downloader.Win32.Small.acpp [Kaspersky Lab]1
Trojan-Downloader.Win32.Small.acqo [Kaspersky Lab]1