liblzma backdoor strings extracted from 5.6.1 (from a built-in trie)

hashes.txt

0810 b' from '
0678 b' ssh2'
00d8 b'%.48s:%.48s():%d (pid=%ld)\x00'
0708 b'%s'
0108 b'/usr/sbin/sshd\x00'
0870 b'Accepted password for '
01a0 b'Accepted publickey for '
0c40 b'BN_bin2bn\x00'
06d0 b'BN_bn2bin\x00'
0958 b'BN_dup\x00'
0418 b'BN_free\x00'
04e0 b'BN_num_bits\x00'
0790 b'Connection closed by '
0018 b'Could not chdir to home directory %s: %s\n\x00'
00b0 b'Could not get agent socket\x00'
0960 b'DISPLAY='
09d0 b'DSA_get0_pqg\x00'
0468 b'DSA_get0_pub_key\x00'
07e8 b'EC_KEY_get0_group\x00'
0268 b'EC_KEY_get0_public_key\x00'
06e0 b'EC_POINT_point2oct\x00'
0b28 b'EVP_CIPHER_CTX_free\x00'
0838 b'EVP_CIPHER_CTX_new\x00'
02a8 b'EVP_DecryptFinal_ex\x00'
0c08 b'EVP_DecryptInit_ex\x00'
03f0 b'EVP_DecryptUpdate\x00'
00f8 b'EVP_Digest\x00'
0408 b'EVP_DigestVerify\x00'
0118 b'EVP_DigestVerifyInit\x00'
0d10 b'EVP_MD_CTX_free\x00'
0af8 b'EVP_MD_CTX_new\x00'
06f8 b'EVP_PKEY_free\x00'
0758 b'EVP_PKEY_new_raw_public_key\x00'
0510 b'EVP_PKEY_set1_RSA\x00'
0c28 b'EVP_chacha20\x00'
0c60 b'EVP_sha256\x00'
0188 b'EVP_sm'
08c0 b'GLIBC_2.2.5\x00'
06a8 b'GLRO(dl_naudit) <= naudit\x00'
01e0 b'KRB5CCNAME\x00'
0cf0 b'LD_AUDIT='
0bc0 b'LD_BIND_NOT='
0a90 b'LD_DEBUG='
0b98 b'LD_PROFILE='
03e0 b'LD_USE_LOAD_BIAS='
0a88 b'LINES='
0ac0 b'RSA_free\x00'
0798 b'RSA_get0_key\x00'
0918 b'RSA_new\x00'
01d0 b'RSA_public_decrypt\x00'
0540 b'RSA_set0_key\x00'
08f8 b'RSA_sign\x00'
0990 b'SSH-2.0'
04a8 b'TERM='
00e0 b'Unrecognized internal syslog level code %d\n\x00'
0158 b'WAYLAND_DISPLAY='
0878 b'__errno_location\x00'
02b0 b'__libc_stack_end\x00'
0228 b'__libc_start_main\x00'
0a60 b'_dl_audit_preinit\x00'
09c8 b'_dl_audit_symbind_alt\x00'
08a8 b'_exit\x00'
05b0 b'_r_debug\x00'
05b8 b'_rtld_global\x00'
0a98 b'_rtld_global_ro\x00'
00b8 b'auth_root_allowed\x00'
01d8 b'authenticating'
0028 b'demote_sensitive_data\x00'
0348 b'getuid\x00'
0a48 b'ld-linux-x86-64.so'
07d0 b'libc.so'
07c0 b'libcrypto.so'
0590 b'liblzma.so'
0938 b'libsystemd.so'
0020 b'list_hostkey_types\x00'
0440 b'malloc_usable_size\x00'
00c0 b'mm_answer_authpassword\x00'
00c8 b'mm_answer_keyallowed\x00'
00d0 b'mm_answer_keyverify\x00'
0948 b'mm_answer_pam_start\x00'
0078 b'mm_choose_dh\x00'
0040 b'mm_do_pam_account\x00'
0050 b'mm_getpwnamallow\x00'
00a8 b'mm_log_handler\x00'
0038 b'mm_pty_allocate\x00'
00a0 b'mm_request_send\x00'
0048 b'mm_session_pty_cleanup2\x00'
0070 b'mm_sshpam_free_ctx\x00'
0058 b'mm_sshpam_init_ctx\x00'
0060 b'mm_sshpam_query\x00'
0068 b'mm_sshpam_respond\x00'
0030 b'mm_terminate\x00'
0c58 b'parse PAM\x00'
0400 b'password\x00'
04f0 b'preauth'
0690 b'pselect\x00'
07b8 b'publickey\x00'
0308 b'read\x00'
0710 b'rsa-sha2-256\x00'
0428 b'setlogmask\x00'
05f0 b'setresgid\x00'
0ab8 b'setresuid\x00'
0760 b'shutdown\x00'
0d08 b'ssh-2.0'
02c8 b'ssh-rsa-cert-v01@openssh.com\x00'
0088 b'sshpam_auth_passwd\x00'
0090 b'sshpam_query\x00'
0080 b'sshpam_respond\x00'
0098 b'start_pam\x00'
09f8 b'system\x00'
0198 b'unknown\x00'
0b10 b'user'
0380 b'write\x00'
0010 b'xcalloc: zero size\x00'
0b00 b'yolAbejyiejuvnup=Evjtgvsh5okmkAvj\x00'
0300 b'\x7fELF'

Can anyone explain the seemingly suspicious string at L115?

How to add this environment variable? I built a backdoor using xboot and am now trying to terminate the backdoor using this variable, but I don't understand how to add it. Please help me :)

How to add this environment variable? I built a backdoor using xboot and am now trying to terminate the backdoor using this variable, but I don't understand how to add it. Please help me :)

How to add this environment variable? I built a backdoor using xboot and am now trying to terminate the backdoor using this variable, but I don't understand how to add it. Please help me :)