ThreatExpert Report: W32.Waledac, Email-Worm.Win32.Iksmas.dt, W32/Waledac.gen.b, W32/Waled-T..

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Submission Summary:

Submission details:

Submission received: 4 February 2009, 04:06:44
Processing time: 6 min 29 sec
Submitted sample:

File MD5: 0x7232751C59610F4E06DD16EC9D623A79
File SHA-1: 0x8F5A9F82243F01F33E008DA19E386ED6B0A4AFC5
Filesize: 392,704 bytes
Alias:

W32.Waledac [Symantec]
Email-Worm.Win32.Iksmas.dt [Kaspersky Lab]
W32/Waledac.gen.b [McAfee]
W32/Waled-T [Sophos]
Trojan:Win32/Waledac.D [Microsoft]
Trojan.Waledac [Ikarus]

Summary of the findings:

What's been found	Severity Level
Capability to send out email message(s) with the built-in SMTP client engine.
Contains characteristics of Waledac, a worm that spreads by sending an email containing links to copies of itself.
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! The following threat category was identified:

Threat Category	Description
	A network-aware worm that attempts to replicate across the existing network(s)

File System Modifications

The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	[file and pathname of the sample #1]	392,704 bytes	MD5: 0x7232751C59610F4E06DD16EC9D623A79 SHA-1: 0x8F5A9F82243F01F33E008DA19E386ED6B0A4AFC5	W32.Waledac [Symantec] Email-Worm.Win32.Iksmas.dt [Kaspersky Lab] W32/Waledac.gen.b [McAfee] W32/Waled-T [Sophos] Trojan:Win32/Waledac.D [Microsoft] Trojan.Waledac [Ikarus]

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	950,513 bytes

Registry Modifications

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

PromoReg = "[file and pathname of the sample #1]"

so that [file and pathname of the sample #1] runs every time Windows starts

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion]

RList = B7 A5 5B 56 63 FE 37 15 A8 4A 04 A3 5C 01 63 25 4E 4F 04 B7 99 81 10 20 1B C3 F3 C5 9B ED 7D 80 BC 35 D8 63 F1 4F 7A 3D D5 B4 E1 21 DE D5 93 F4 22 AD 51 7C 6A FD 54 B4 11 D5 B0 CF 86 94 6C 21 6C 12 C5 54 2A 59 54 90 79 B9 FF 51 88 AF 10 66 51 4C D6 0
MyID = C3 77 F3 68 CC 7F F5 74 8F 3D F0 2B EF 06 80 47

Other details

The following port was open in the system:

Port	Protocol	Process
1063	TCP	[file and pathname of the sample #1]

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