alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; reference:url,doc.emergingthreats.net/2007858; classtype:trojan-activity; sid:2007858; rev:2; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2017-08-07 21:01:05 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; reference:url,doc.emergingthreats.net/2007858; classtype:trojan-activity; sid:2007858; rev:2;)

Added 2011-10-12 19:23:58 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2007858; sid:2007858; rev:2;)

Added 2011-09-14 22:37:26 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2007858; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Delf; sid:2007858; rev:2;)

Added 2011-02-04 17:26:57 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2007858; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Delf; sid:2007858; rev:2;)

Added 2009-02-12 18:21:15 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2007858; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Delf; sid:2007858; rev:2;)

Added 2009-02-12 18:21:15 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; classtype:trojan-activity; sid:2007858; rev:1;)

Added 2008-03-22 17:11:34 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; classtype:trojan-activity; sid:2007858; rev:1;)

Added 2008-03-22 17:10:58 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; classtype:trojan-activity; sid:2007858; rev:1;)

Added 2008-03-22 17:09:49 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; classtype:trojan-activity; sid:2007858; rev:1;)

Added 2008-02-20 10:05:03 UTC

Caught an interesting Delf variant pushing keylogs up via ftp with a predictable filename.

STOR MACHINENAME Keylogger [12_54 AM].txt

as in 3f88ebc01fb1c4459d8041458fe97853

STOR BXXX Keylogger [12_44_57 AM].txt

-- MattJonkman - 20 Feb 2008

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; classtype:trojan-activity; sid:2007858; rev:1;)

Added 2008-02-20 10:03:42 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"ET TROJAN Delf Keylog FTP Upload"; flow:established,to_server; content:"STOR "; depth:5; content:" Keylogger ["; nocase; distance:5; within:50; content:"].txt|0d 0a|"; nocase; distance:5; within:40; classtype:trojan-activity; sid:2007858; rev:1;)

Added 2008-02-20 09:50:39 UTC