What extension does the attachment have (exe, pif, zip)? -Paul ----- Original Message ----- From: <albatross@xxxxxx> To: <bugtraq@xxxxxxxxxxxxxxxxx> Sent: Wednesday, August 04, 2004 9:22 AM Subject: New MyDoom variant > > > The SANS Institute reports a new variant of MyDoom in the wild actually not recognized by AV vendors: > > New MyDoom On The Loose > > Initial analysis (we will update as we know more): > > Currently (16:00GMT), signatures are not yet available. > UPDATED (17:00GMT): > - Signatures are starting to come out, identifying this as MyDoom.O, MyDoom.P or Evaman.C > - It appears that this may only work on Win2K and WinXP machines because the executable requires psapi.dll. > - Copies itself to the Windows' system directory as winlibs.exe and installs itself under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run > > UPDATED (17:30GMT) - *BETA* Snort Sigs: > UPDATED (17:40GMT) - *BETA #2* Snort Sigs: > UPDATED (19:30GMT) - *BETA #3* Snort Sigs: > > > var YAHOO [216.109.127.126/32] > #var YAHOO any > pass tcp any any -> $YAHOO 80 (msg: "Beta - MyDoom.P yahoo email address search";\ > sid:900018; rev:4; flow:established,to_server; flags:A+;\ > flowbits:set,search_uri; content: "/py/psSearch.py|3f|";) > alert tcp any any -> $YAHOO 80 (msg: "Beta - MyDoom.P yahoo email address search";\ > sid:900018; rev:4; flow:established,to_server; flags:A+;\ > flowbits:isset,search_uri; content: "Host|3a| EMAIL.PEOPLE.YAHOO.COM";) > > Targets Yahoo's people search: > > http://email.people.yahoo.com:80/py/psSearch.py? > > NEW (1700GMT)- Example packet capture: > > 12:23:22.922862 10.1.0.129.1035 > 216.109.127.126.80: P 5:310(305) ack 1 win 175 20 (DF) > 0x0000 4500 0159 0077 4000 8006 96ba 0a01 0081 E..Y.w@......... > 0x0010 d86d 7f7e 040b 0050 2217 187c 6b8a 5eb1 .m.~...P"..|k.^. > 0x0020 5018 4470 46c9 0000 2f70 792f 7073 5365 P.DpF.../py/psSe > 0x0030 6172 6368 2e70 793f 4669 7273 744e 616d arch.py?FirstNam > 0x0040 653d 4a61 6d69 6526 696e 6465 783d 2048 e=Jamie&index=.H > 0x0050 5454 502f 312e 300d 0a41 6363 6570 743a TTP/1.0..Accept: > 0x0060 2069 6d61 6765 2f67 6966 2c20 696d 6167 .image/gif,.imag > 0x0070 652f 782d 7862 6974 6d61 702c 2069 6d61 e/x-xbitmap,.ima > 0x0080 6765 2f6a 7065 672c 2069 6d61 6765 2f70 ge/jpeg,.image/p > 0x0090 6a70 6567 2c20 6170 706c 6963 6174 696f jpeg,.applicatio > 0x00a0 6e2f 766e 642e 6d73 2d65 7863 656c 2c20 n/vnd.ms-excel,. > 0x00b0 6170 706c 6963 6174 696f 6e2f 6d73 776f application/mswo > 0x00c0 7264 2c20 6170 706c 6963 6174 696f 6e2f rd,.application/ > 0x00d0 766e 642e 6d73 2d70 6f77 6572 706f 696e vnd.ms-powerpoin > 0x00e0 742c 202a 2f2a 0d0a 4163 6365 7074 2d4c t,.*/*..Accept-L > 0x00f0 616e 6775 6167 653a 2065 6e2d 7573 0d0a anguage:.en-us.. > 0x0100 4163 6365 7074 2d45 6e63 6f64 696e 673a Accept-Encoding: > 0x0110 2067 7a69 702c 2064 6566 6c61 7465 0d0a .gzip,.deflate.. > 0x0120 5573 6572 2d41 6765 6e74 3a20 4d6f 7a69 User-Agent:.Mozi > 0x0130 6c6c 612f 342e 300d 0a48 6f73 743a 2045 lla/4.0..Host:.E > 0x0140 4d41 494c 2e50 454f 504c 452e 5941 484f MAIL.PEOPLE.YAHO > 0x0150 4f2e 434f 4d0d 0a0d 0a O.COM.... > > > Message subjects(?): > > SN: New secure mail > SN: New secure mail > Secure delivery > Secure delivery > failed transaction > failed transaction > Re: hello (Secure-Mail) > Re: hello (Secure-Mail) > Re: Extended Mail > Re: Extended Mail > Delivery Status (Secure) > Delivery Status (Secure) > Re: Server Reply > Re: Server Reply > SN: Server Status > SN: Server Status > > > Message body contains(?): > > Automatically Secure Delivery: for > Automatically Secure Delivery: for > Mail Delivery Server System: for > Mail Delivery Server System: for > Extended secure mail message available at: > Extended secure mail message available at: > Secure Mail Server Notification: for > Secure Mail Server Notification: for > New mail secure method implement: for > New mail secure method implement: for > New policy requested by mail server to returned mail > as a secure compiled attachment (Zip). > New policy requested by mail server to returned mail > as a secure compiled attachment (Zip). > Now a new message is available as secure Zip file format. > Due to new policies on clients. > Now a new message is available as secure Zip file format. > Due to new policies on clients. > This message is available as a secure Zip file format > due to a new security policy. > This message is available as a secure Zip file format > due to a new security policy. > For security measures this message has been packed as Zip format. > This is a newly added security feature. > For security measures this message has been packed as Zip format. > This is a newly added security feature. > New policy recommends to enclose all messages as Zip format. > Your message is available in this server notice. > New policy recommends to enclose all messages as Zip format. > Your message is available in this server notice. > You have received a message that implements secure delivery technology. > Message available as a secure Zip file. > You have received a message that implements secure delivery technology. > Message available as a secure Zip file. > This message is an automatically server notice > from Administration at > This message is an automatically server notice > from Administration at > Server Notice: New security feature added. MSG:ID: 455sec86 > Server Notice: New security feature added. MSG:ID: 455sec86 > New feature added for security reasons > New feature added for security reasons > Automatically server notice:, > Server reply from > Automatically server notice:, > Server reply from > New service policy for security added from > New service policy for security added from > > > The executable contains the following names that are used to search Yahoo: > Johnson, Williams, Wilson, Taylor, Anderson, Thomas, Jackson, Parker, Hernandez, Gonzalez, Roberts, Patricia, Margaret, Elizabeth, Anthony, Daniel, Patrick, Douglas, Carlos, Sanchez, Howard, Washington, Walter, Robinson, Miguel, Jennifer, Alberto, Mathew, Taylor, Walker, Mitchell, Carter, Nelson, Brooks, Jenkins, Coleman, Flores, Griffin, Morris, Rogers, Barbara, Angela, Amanda, Pamela, Martha, Frances, Cynthia, Stephanie, Nicole, Andrea, Rebeca, Steven, Anthony, George, Michael, Isabel, Marcos, Camilo, Salomon, Esteban, Francis, Nicholas, Samuel, Angela, Catherine, Susanna, Dorothy, Elizabeth, Andrew, Philip, Hester, Edward, Martin, Gabriel, Christopher, Lawrence, Christian, Christ, Dorcas, Rowland, Cecily, Margery, Turner, Torres, Brooks, Harrison, Gibson, Pierce, Arnold, Watkins, Medina, Mendoza, Santiago, Christina, Norris, Santos, Burgess, Valdez, Barber, Patton, Ortega, Estrada, Waters, Ashlee, Parson, Sparks, Morton, Allison, Monique, Summers, Cortez, Barton, Deleon, H > arrell, Navarro, Woodard, Meyers, Petersen, Vannessa, Douglas, Joanna, Judith, Bridget, Jessica, Jeffrey, Timothy, Shirley, Kimberly, Sandra, Melissa, Virginia, Dennis, Junior, Heather, Collins, Garcia, Miller, Barton, Bridget, Gillian, Ursula, Hannah, Cooper, Watson, Bennett, Sanders, Ramirez, Bailey, Murphy, Campbell, Barnes, Alexis, Samantha, Madison, Joshua, Charles, Clinton, Lincoln, Houston, Claudia, Britney, Carson, Spider, Laster, Jolley, Galvin, Alecia, Karrie, Ivette, Freeman, Hunter, Simpson, Hamilton, Knight, Mcdonald, Elliott, Bradley, Duncan, Weaver, Fields, Chapman, Kelley, Wagner, Jacobs, Stanley, Fuller, Newman, Lambert, Cummings, Leonard, Barker, Norris. >
