Au cours d'une analyse approfondie, Bit Defender a détecté un troyen, Trojan.Heur.PT.1054ABBBBB , sans pouvoir le supprimer.
Voici le journal:
<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet type="text/xsl" href="C:\Program Files\BitDefender\BitDefender 2008\Lang\log_format.xsl"?>
<ScanSession creator="BitDefender Total Security 2008" version="BitDefender UIScanner V.11" creationDate="02:11:43 27/06/2009" originalPath="C:\ProgramData\BitDefender\Desktop\Profiles\Logs\deep_scan\1246061503_2_02.xml">
	<ScanOptions
		showWarnings="1"	>
		<ScanPaths>
			<path id="0000">C:\</path>
			<path id="0001">D:\</path>
			<path id="0002">F:\</path>
			<path id="0003">H:\</path>
			<path id="0004">I:\</path>
			<path id="0005">E:\</path>
			<path id="0006">J:\</path>
		</ScanPaths>
		<ScanObjects
			scanViruses="1"
			scanAddware="1"
			scanSpyware="1"
			scanApplications="1"
			scanDialers="1"
			scanRootkits="1"
		/>
		<TargetSelection
			heuristicScan="1"
			scanArchives="1"
			scanRegistryKeys="1"
			scanRegistry="1"
			scanCookies="1"
			memoryProcesses="1"
			scanBootSectors="1"
			scanEmail="1"
			scanAllFiles="1"
			scanPackedFiles="1"
			scanSubfolders="1"
			includeExtensions=""
			excludeExtensions=""
		/>
		<TargetProcessing
			infectedAction="3"
			suspiciousAction="1"
			hiddenAction="1"
		/>
	</ScanOptions>
	<EngineSummary
		archivePlugins="44"
		mailPlugins="6"
		scanPlugins="13"
		totalSignatures="3716262"
		systemPlugins="5"
		unpackPlugins="7"
		/>
	<ScanSummary
		scannedItems="330254"
		infectedItems="1"
		suspiciousItems="0"
		resolvedItems="0"
		scannedArchives="2020"
		bootSectorCount="5"
		scannedDirectories="25726"
		inputOutputErrors="2"
		virusesNumber="1"
		scanTime="00:01:07:24"
		filesPerSecond="81"
		>
		<FileSummary
			scanned="329107"
			archives="2020"
			packed="36327"
			infected="1"
			suspicious="0"
			resolved="0"
			deleted="0"
			moved="0"
			copied="0"
		/>
		<RegistryKeySummary
			scanned="1054"
			infected="0"
			suspicious="0"
		/>
		<CookieSummary
			scanned="2"
			infected="0"
			suspicious="0"
		/>
		<ProcessSummary
			scanned="91"
			infected="0"
			suspicious="0"
		/>
		<MailSummary
			scanned="0"
			infected="0"
			suspicious="0"
		/>
	</ScanSummary>
	<ScanDetails>
<AffectedItem itemType ="Process" path="[system]=]C:\Windows\system32\prevhost.exe (memory dump)" threatType="virus" threatName="Gen:Trojan.Heur.PT.1054ABBBBB" action="disinfect" finalStatus= "infected" error= "no action possible"/>		
<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/Cover67.bmp" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/digibib.txt" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/tree.dki" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/tree.dka" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/lemmata.txt" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/index.htx" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/index.plx" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/index.wlx" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/index.ttx" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/index.set" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/sigel.lib" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/text.dki" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Data/tabelle0.tab" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
		<AffectedItem itemType ="File" path="D:\Mes documents\Digibib4\db067.dbz=]DB067/Images/Images.lib" threatType="virus" threatName="Protégé par mot de passe" action="none" finalStatus= "not scanned" error= "no action possible"/>
	</ScanDetails>
</ScanSession>
J'ai tenté de poster le fichier incriminé en fichier joint, mais le site a refusé ("upload failed. You are not premitted to upload this type of file").
Curieusement, deux scans approfondis effectués ultérieurement n'ont identifié aucune menace.
A l'avance, un grand merci pour votre aide.