The virus definitions for Symantec Protection Engine (SPE) stop successfully updating. When reviewing the lux.log you failure with the result code 0x80012001.
Additionally a review of the defutils.log may show entries similar to the following:
CDefUtils::UnLockLiveUpdate() - end.
CDefUtils::PreDefUpdateInternal (szDir1: , szDir2: ) - returning DU_E_CREATE_TEMP_DIR
CDefUtils::PreMicroDefUpdateInternal() - returning DU_E_CREATE_TEMP_DIR
CDefUtils::PreMicroDef25Update() - returning DU_E_CREATE_TEMP_DIR
CDefUtils::GetTempUpdateDir(): Calling CreateDirectory (/<SPE_INSTALL_FOLDER>/bin/definitions/Stargate/digest/symcdata/stargate/<temp_folder>, NULL) failed.
SPE 9.x on Linux
Creation of a temporary directory in /<SPE_INSTALL_FOLDER>/bin/definitions/Stargate/digest/symcdata/stargate/ failed due to a permissions issue.
ls -lah /<SPE_INSTALL_FOLDER>/bin/definitions/Stargate/digest/symcdata/
chown -R <SPE_SERVICE_ACCOUNT>:avdefs /<SPE_INSTALL_FOLDER>/bin/definitions/Stargate/digest/symcdata/
/etc/init.d/symcscan restart