See below for patches released Between 4/01/12 and 4/30/12

Please note: Not all of these patches will be applicable to every machine, but all are included for informational purposes.

Apple

Apple 2012-04-13 Flashback Malware Existence and Removal Tool

Microsoft

890830 Windows Malicious Software Removal Tool x64 – April 2012 (KB890830)
890830 Windows Malicious Software Removal Tool – April 2012 (KB890830)
MS12-027 2598039 Security Update for Microsoft Office 2010 (All Languages)
MS12-027 2598041 Security Update for Microsoft Office 2007 (All Languages)
MS 2598306 Outlook 2007 Junk Email Filter Update (April 2012) (All Languages)
MS12-023 Cumulative Security Update for Internet Explorer 9 for Windows 7 for x64 (KB2675157)
MS12-023 Cumulative Security Update for Internet Explorer 8 for Windows XP (KB2675157)
MS12-023 Cumulative Security Update for Internet Explorer 9 for Windows 7 (KB2675157)
MS12-023 Cumulative Security Update for Internet Explorer 7 for Windows XP (KB2675157)
MS12-023 Cumulative Security Update for Internet Explorer 8 for Windows 7 (KB2675157)
MS12-023 Cumulative Security Update for Internet Explorer 8 for Windows 7 for x64 (KB2675157)
MS12-024 Security Update for Windows 7 for x64 (KB2653956)
MS12-024 Security Update for Windows XP (KB2653956)
MS12-024 Security Update for Windows 7 (KB2653956)
MS12-025 Security Update for Microsoft .NET Framework 1.0 SP3 on XP Tablet PC and Media (KB2656378)
MS12-025 Security Update for Microsoft .NET Framework 3.5.1 on Win7 x86 (KB2656372)
MS12-025 Security Update for Microsoft .NET Framework 3.5.1 on Win7 and 2008 R2 x64 (KB2656372)
MS12-025 Security Update for Microsoft .NET Framework 2.0 SP2 on 2003 and XP x86 (KB2656369)
MS12-025 Security Update for Microsoft .NET Framework 4 on XP, 2003, Vista, Win7, 2008 x86 (KB2656368)
MS12-025 Security Update for Microsoft .NET Framework 3.5.1 on Win7 SP1 x86 (KB2656373)
MS12-025 Security Update for Microsoft .NET Framework 4 on XP, 2003, Vista, Win7, 2008, 2008 R2 x64 (KB2656368)
MS12-025 Security Update for Microsoft .NET Framework 3.5.1 on Win7 and 2008 R2 SP1 x64 (KB2656373)
MS12-025 Security Update for Microsoft .NET Framework 1.1 SP1 on XP, Vista, and 2008 x86 (KB2656370)
MS12-027 Security Update for Microsoft Office 2003 (KB2597112)
MS12-028 Security Update for Microsoft Office 2007 suites (KB2596871)

Other

Adobe APSB12-08 Reader X 10.1.3 for Windows (Update) (English)
Adobe APSB12-08 Reader X 10.1.3 Security Update for Mac OS X
Adobe APSB12-08 Acrobat Professional 9.5.1 for Windows (Update) (Multi-Language) (See Notes)
Adobe APSB12-08 Reader 9.5.1 Security Update for Mac OS X (Intel)
Adobe APSB12-08 Acrobat Professional 9.5.1 for Windows (Update) (English) (See Notes)
Adobe APSB12-08 Acrobat Professional 10.1.3 for Windows (Update) (English) (See Notes)
Adobe APSB12-08 Acrobat Professional 10.1.3 for Windows (Update) (Multi-Language) (See Notes)
McAfee AntiVirus VirusScan 4.5 – 8.5 DAT File 6697 (April 30, 2012)
McAfee AntiVirus VirusScan Enterprise 8.7 – 8.8 DAT File 6697 (April 30, 2012) (Rev 2)
McAfee AntiVirus VirusScan 4.5 – 8.5 SuperDAT File 6697 (April 30, 2012)
McAfee AntiVirus VirusScan Enterprise 8.7 – 8.8 SuperDAT File 6697 (April 30, 2012) (Rev 2)